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70S Ribosome : Ribosome with the sedimentation coefficient of 70 Svedberg is the 70S Ribosome composed of 50S and 30S subunit.
80S Ribosome : Ribosome with the sedimentation coefficient of 80 Svedberg is the 80S Ribosome composed of 40S and 60S subunit.
A
Abdominal Aorta : Abdominal Aorta is the part of aorta passing through abdominal region Or simply is the largest artery in the abdominal region.
Abduction : Abduction is when you move part of your body ( arm, leg etc ) away from body.
Abiotic Components : Abiotic Components are the non-living components of the ecosystem.
Acromion : Acromion is the part of scapula bone which articulates with the collarbone of the pectoral girdle by the acromioclavicular joint.
Adaptive Immune System : Adaptive Immune System is the immune system which is developed after exposure to any diseases or vaccine.
Adduction : Adduction is when you move part of your body ( arm, leg etc ) closer to body.
Adenoid Tonsil : Adenoid Tonsil is the mass of lymphatic tissue located behind the nasal cavity. It is called nasopharyngeal tonsil or pharyngeal tonsil.
Age : Age is the duration of organisms life.
Ageing Process : After certain time when growth and development stops and body starts losing it's effective working and becomes old is called ageing process.
Agenesis : Agenesis is the absence of a tissue or organ due to lack of development.
Agonists Muscle : Agonists Muscle is the contracting muscle.
Albumin : Albumin is the protein produced by liver.
Albuminuria : When protein albumin is found abnormally high in urine it is called Albuminuria.
Alimentary Canal : Alimentary Canal is the 8 to 10 meters long tubular structure starting from mouth and ends with anus.
Ammonotelism : Ammonotelism is the process of elimination of nitrogenous waste in form of ammonia from organism.
Amoebic Dysentery : Amoebic Dysentery also called Amebiasis is the type of dysentery caused by Entamoeba histolytica.
Amoeboid Movement : Amoeboid Movement is a type of locomotory movement performed by pseudopodia.
Amphiarthroses : Amphiarthroses is the type of joint which slightly movable.
Amphipathic : Amphipathic refers to liquid molecules which have both hydrophobic (water hating) and hydrophilic (water loving) parts.
Amygdala : Amygdala is the part of brain which controls all the emotions and also best known for "fight and flight response".
Amylase : Amylase is a enzyme that helps to convert starch into sugar.
Amyloplast : Amyoplast are the type of plastids in plants which produces and store starch.
Anabolism : Anabolism means making of new complex molecules from simple or smaller molecules in body. Anabolism is a part of metabolism.
Analogous Structure : Analogous Structure are the biological structure which are anatomically different but have the same function.
Anatomy : Anatomy is a branch of biology which deals with the study of structure of living organisms.
Androgenic Hair : Androgenic Hair are the body hair that develops on the human body during and after puberty.
Anemophily : Anemophily is the pollination by wind.
Angiosperms : Angiosperms are also called flowering plants as they have flowers and the seeds are within their fruits.
Antagonistic Muscle Pair : Antagonistic Muscle Pair are the pair of muscle in which one muscle contracts and at the same time the other muscle relaxes. Eg: bicep and tricep
Antagonists Muscle : Antagonists Muscle is the relaxing muscle.
Anuria : Anuria means no urine output; no urine production.
Apical Pulse : Apical Pulse is the pulse felt over the heart on left side of chest little below the nipple.
Apomixis : In Botany, apomixis is asexual reproduction without fertilization.
Apoptosis : Apoptosis is the natural process in which cell death is programmed in controlled manner.
Appendix : Appendix is the small finger-like structure extending from cecum.
Aqueous Humour : Aqueous Humour is the fluid between lens and cornea in the eyes.
Arterial Blood : Arterial blood is the bright red oxygenated blood in artery.
Arterial System : Arterial system is the network of artery in the body.
Arthrology : Arthrology is the study of joints.
Arthrosis : Arthrosis is the point at which bones articulate or joints.
Articular Cartilage : Articular Cartilage is a type of hyaline cartilage that is present on the articular surfaces of the bone joints.
Articulation : Articulation is the point at which bones articulate or joints.
Ascending Colon : Ascending Colon is the first part of colon starting from cecum and passes upward to connected transverse colon.
Ascending Pharyngeal Artery : Ascending Pharyngeal Artery is the artery in the neck which supplies blood to pharynx.
Ascorbic Acid : Ascorbic Acid, also known as Vitamin C is the water soluble vitamin.
Asexual Reproduction : Asexual Reproduction is the type of reproduction in which single parent can produce it's offspring and mating is not involved.
Autophagic Intracellular Digestion : Autophagic Intracellular Digestion is a process in which cell itself breaks down the internal components such as cell organelles.
Autophagy : Autophagy is the process by which unwanted constituent within the cell are removed.
Autosome : Autosome is the any chromosome which is not sex chromosome.
Autotrophic Nutrition : Autotrophic Nutrition is the nutrition synthesized by the Organisms itself.
B
Bartholin's Gland : Bartholin's Gland is a pair of small pea shaped gland in females which lubricates the vagina.
Basal Cell Layer : Basal Cell Layer is the bottom layer of epidermis.
Basopenia : Basopenia is the decrease in the number of basophils in the body then the normal range.
Basophilia : Basophilia is the increase in the number of basophils in the body then the normal range.
Basophils : Basophils is one of the type of white blood cells in our body.
Bile : Bile is the dark-green to yellowish-brown color fluid produced by liver which helps in digestion.
Biocatalyst : Biocatalyst is the catalyst of organic origin which increases the rate of biochemical reactions. eg: Enzymes are biocatalyst.
Biofuel : Biofuel is the fuel obtain from organic matter.
Biological Control : Biological Control means- to control one disease causing organism with help of another enemy living organisms.
Biological Rhythms : Biological Rhythms is the natural cycle of changes in our body's function, sometimes also described as biological clock.
Biology : Biology - is the branch of science which deals with the study of living organisms and its life processes.
Biomembrane : Biomembrane means cell membrane.
Biophysics : Biophysics is the branch of biology which uses the laws and methods of physics to study biological processes.
Biospy : Biopsy is the removal of piece of affected tissue or sample of affected tissue to examine it under microscope.
Biotechnology : Biotechnology is the branch of biology which utilizes biological systems, living organisms or part of it to create or develop different products.
Biotic Components : Biotic Components are the living components of the ecosystem.
Biotic Potential : Biotic Potential is the maximum capacity of an animal to reproduce to increase its population.
Biotin : Biotin, also known as Vitamin H or Vitamin B7 is the water soluble vitamin.
Bipedalism : Bipedalism is a type of locomotion where organisms only use there two legs (rear limbs) to move to other locations.
Bisexual Organism : Bisexual Organisms are the organism having both male and female reproductive organs.
Bleeding Time : Bleeding Time is the time required to stop bleeding which helps to evaluate platelets functions.
Blood : Blood is a fluid connective tissue consisting of plasma and many other cells which circulate through the blood vessels.
Blood Stream : Blood Stream is the movement or the flow of the blood throughout the body.
Blood Sugar : Blood Sugar is the glucose found in our blood.
Body of Stomach : Body of stomach is the large and the central part of stomach which stores food.
Botanical Garden : Botanical garden is the garden with the collection of the living plant for the scientific study.
Botany : Botany is the branch of science which deals with the study of plants.
Brachial Artery : Brachial Artery is the major artery which supplies blood in arms.
Bradycardia : Bradycardia is the slow heart beat lesser then 60 beats per minute.
Bradypnea : Bradypnea is abnormally slow breathing.
Breast Milk : Breast milk is the milk produced by mammary glands located in the breast of female.
Breathing Rate : Breathing Rate also called Respiratory Rate is the number of breath per minute.
Buccal Cavity : Buccal cavity, also called oral cavity which is the oval shaped cavity that is the starting of alimentary canal. Buccal Cavity is commonly called Mouth.
Bulbourethral Gland : Bulbourethral gland is also called crowper's gland which is a pair of small pea shaped exocrine gland and a part of reproductive system in male.
C
C1 Vertebrae : C1 Vertebrae is also called Atlas is the first vertebrae of cervical spine.
C2 Vertebrae : C2 Vertebrae is the second vertebrae of cervical spine.
C3 Vertebrae : C3 Vertebrae is the third vertebrae of cervical spine.
C4 Vertebrae : C4 Vertebrae is the fourth vertebrae of cervical spine.
C5 Vertebrae : C5 Vertebrae is the fifth vertebrae of cervical spine.
C6 Vertebrae : C6 Vertebrae is the sixth vertebrae of cervical spine.
C7 Vertebrae : C7 Vertebrae is the seventh and the last vertebrae of cervical spine.
Calciferol : Calciferol, also known as Vitamin D2 is the fat soluble vitamin.
Calcium Stone : Calcium Stone is the type of kidney stone usually formed of calcium oxalate or calcium phosphate.
Canine Teeth : Canine Teeth, also called cuspids or eyeteeth are the pointed teeth in the front of the mouth.
Cantharophily : Cross pollination of flowers by insect named "beetles" is called Cantharophily.
Capsid : Capsid is the protein shell of virus which encloses its genetic material.
Capsomeres : Capsomeres are the subunit of capsid.
Carcinogenic : Anything that is carcinogenic is the cancer causing factor.
Cardiac Spinchter : Cardiac Spinchter is the band of circular muscles present at the junction of oesophagus and stomach called cardiac sphincter which prevents food from going back in oesophagus.
Cardiac Stomach : Cardiac or Cardia Stomach is the opening of esophagus in stomach.
Carnivora : Carnivora is the different category. "Order Carnivora" within "class mammals" includes animals which are mostly carnivorous but not all.
Carnivores : Carnivores are the meat eating animals.
Carotid Artery : Carotid is the major artery which supply the blood to head.
Cartilagenous Joints : Cartilagenous joints are joints which can slightly move and the bones are connected by cartilage.
Catabolism : Catabolism means breaking down the complex molecules to simple or smaller molecules in body. Catabolism is the part of metabolism.
Cecum : Cecum is a pouch-like structure on lower right side of abomen which connects small intestine and large intestine.
Cell Biology : Cell Biology is the study of structure and functions of the cells.
Cellular Pool : Cellular Pool is the collection of various biomolecules in the cell.
Cellulose : Cellulose is the substance of which plant cell wall is made up of.
Centriole : Centriole is small, cylindrical cell organelle, seen near the nucleus of Cytoplasm.
Cerebrospinal Fluid : Cerebrospinal fluid is clear and colourless fluid surrounding brain and spinal cord.
Chemotaxonomy : Chemotaxonomy is the method of classification of organisms based on its chemical and biochemical composition.
Chiropterophily : Pollination by bats is called Chiropterophily.
Chromatin : Chromatin is the complex of DNA, RNA and protein which makes Chromosome in a nucleus.
Chromatophore : Chromatophore are pigment containing cells.
Chronobiology : Chronobiology is the study of effects of time on living things and its biological processes.
Chrysophytes : Chrysophytes are the type of algae containing golden brown photosynthetic pigment so also called golden-brown algae.
Cilia : Cilia is the short microscopic hair-like structure useful for locomotion.
Ciliary Movement : Ciliary Movement is a type of locomotory movement performed by cilia.
Ciliary Muscle : Ciliary Muscle is the muscle in the eyes which controls the change of shape of lens as required.
Circadian Rhythm : Circadian rhythm, also called circadian cycle is the natural and internal cycle of roughly 24 hours cycle which regulates our sleep-wake cycle.
Circalunar Rhythms : Circalunar Rhythms is the biological cycle of roughly 30 days corresponding to lunar cycle. eg: reproduction in some organism follow this cycle.
Circannual Rhythms : Circannual Rhythms is the biological cycle of roughly 1 year cycle. eg: fruiting and flowering season once in a year.
Circasemilunar Rhythms : Circasemilunar Rhythms is the biological clock of roughly 15 days.
Circatidal rhythms : Circatidal rhythms is the biological clock corresponding to tidal cycle of roughly 12 hours. eg: marine animals have changes in there behaviour and physiology.
Circulatory System : Circulatory System is the body system which is made up heart and blood vessels through which blood and lymph circulate in our body.
Cisternae : Cisternae is long and flat structure found in golgi apparatus and endoplasmic reticulum.
Clade : Clade is a group of organism evolved from the common ancestors.
Cladistics : Cladistics is the method of classification in which organism are grouped based on its traits.
Cladogram : Cladogram is the diagram which shows the relation between different group of organisms.
Cleft Palate : Cleft Palate is the gap between the palate (roof of mouth) due to birth defects.
Close Circulatory System : Close Circulatory System is the type of circulatory system in which blood is pumped through heart and supplied to organs by blood vessels.
Clotting Time : Clotting Time is the time required to form clot.
Cochlea : Cochlea is a part of inner ear which is a spiral shaped cavity ( looks like a small shell ) plays important role in hearing.
Cochlear Nerve : Cochlear nerve is a sensory nerve which transmits auditory information from inner ear to brain.
Coenocyte : Coenocyte is the cell with many nucleii.
Coenzyme : Coenzyme is the non-protein molecule that is necessary for the functioning of enzymes.
Colic flexure : Colic flexure is the sharp bending of colon.
Collagen : Collagen is the type of fibrous protein that is found in certain connective tissue.
Colon : Colon is the largest part of large intestine.
Colostrum Milk : Colostrum is the first milk produced few days before child birth and lasts for approximately 2- 5 days after childbirth.
Common Carotid Artery : Common Carotid Artery is the primary artery which supplies blood to head.
Concha of Ear : Concha is a shell shaped depression in the external ear.
Condyloid Joint : Condyloid Joint is a type of joint in which one bone has oval shaped end which fits into other bone having similar oval shaped hollow.
Cones in Eyes : Cones in eyes are the type of photoreceptor which are sensitive to bright light and colour images.
Conical Root : Conical Root are the root which are broad at one end and gradually tapers towards other end.
Conjunctiva : Conjunctiva is the mucus memberane which covers the inner surface of eyelids and covers sclera.
Copulation : Copulation means intercourse, also called coitus. (Having Sex)
Cornea : Cornea is the transparent coverings on the outer part of eyes for protection. It covers iris, pupil and the whole outer part.
Corrugator Supercilli Muscle : Corrugator Supercilli Muscle is the small, narrow, pyramidal muscle helps in eyebrow movement etc.
Cotyledon : Cotyledon is the important part of side also reffered as "seed leaf" which stores the nutrients.
Crista Ampullaris : Crista Ampullaris is the sensory organ of rotation in the inner ear which is able to sense angular acceleration and deceleration.
Cryptogram : Cryptogram is plant or plant-like organisms which reproduces through spores.
Cyanobacteria : Cyanobacteria, also called blue-green algae are the bacteria having photosynthetic capabilities.
Cyclosis : Cyclosis is the circular movement of Cytoplasm within cell.
Cyclostome : Cyclostomes are jawless and eel-like animals.
Cystine Stone : Cystine Stone is the type kidney stone which is rare inherited condition formed due to excess excretion of certain amino acid.
Cytochemistry : Cytochemistry is the branch of science which deals with the chemistry of cell, detection of cell components and it's location.
Cytokinesis : Cytokinesis is the part of cell division in which cytoplasm divides resulting in two daughter cells.
Cytoplasm : Cytoplasm is the fluid in the cell which contains nucleus and many other organelles.
Cytotaxonomy : Cytotaxonomy is the method of classification of organisms based on chromosome number and structure.
D
Dendrite : Dendrite is short finger-like fibers extending from nerve cell which conducts impulses towards the cell body.
Denervated Muscle : Denervated muscle is the muscle with no supply of nerve (loss of nerve supply to muscle).
Dentition : Dentition is defined as the number, type, arrangement and development of teeth in mouth.
Depressor Muscle : Depressor muscle is a muscle which lowers a body part.
Dermis : Dermis is the middle and main layer of skin which contains blood capillaries, nerve endings, sweat glands, hair follicles and other structures.
Descending Colon : Descending Colon is the part of colon starting from splenic flexure and passes downward to connected sigmoid colon.
Developmental Biology : Developmental Biology is the study of the growth and development processes in living organisms.
Diaphragm : A thin muscular tissue which separates thorax from abdomen is called Diaphragm.
Diaphysis : Diaphysis or shaft is the long tubelike middle part of long bone between epiphysis.
Diastole : Relaxation of cardiac chamber is termed as Diastole.
Diatom in Biology : Diatom are the unicellular organisms having silica based cell wall called frustule.
Diatomaceous earth : Diatomaceous earth is the sea bed having large deposists of silica based cell wall of diatoms left back over billions of years.
Dicotyledon Seed : Dicotyledon seed are the seed having two Cotyledons
Diencephalon : Diencephalon is the part of forebrain located between midbrain and telencephalon.
Digestion : "Digestion is the process by which the complex and insoluble molecules of food are converted into simple and soluble molecules of food."
Dinoflagellates : Dinoflagellates are the unicellular eukaryotes having two flagella.
Diphyodont : Animals which have only two sets of teeth, temporary teeth like milk teeth and permanent teeth is called diphyodont.
Diploblastic Animals : Diploblastic animal are the animal which are developed from two germ layers, the ectoderm and endoderm.
Diurnal Rhythms : Diurnal Rhythms is the biological cycle which corresponds to 24 hrs day-night cycle generally associated with day time activity.
DNA Barcoding : DNA Barcoding is the method of identification of species by using one or few gene from a part of DNA.
Dorsiflexion : Dorsiflexion is the upward movement of foot or wrist.
Dry Mount : Dry mount is the simplest microscopic slide in which a sample is placed on slide and covered with coverslip.
E
Ear Ossicles : Three bones in middle ear namely malleus, incus, and stapes are collectively called ear ossicles.
Ecology : Ecology is the study of interaction of plants and animals with their environment.
Ecosystem : Ecosystem is the system where interaction between the organism and surrounding environment happens.
Ectomy : Ectomy is the suffix which denotes surgically removal of organ. Eg: Hysterectomy [ "Hyster" means Uterus + ectomy ] is the surgically removal of Uterus.
Ectoparasite : Ectoparasite are the parasite which live on outer surface of the body of host. eg: lice, mites etc
Egestion : Egestion is the discharge of undigested and unabsorbed constituent from alimentary canal.
Elastic Cartilage : Elastic Cartilage is a yellow cartilage that makes up the ear pinna.
Electrogradient : Electrogradient is the difference betwen the electric charges of two sides of membrane.
Embryology : Embryology is the study of development of the organism from zygote.
Embryonate : Embryonate means containing the embryo.
Emigration : Emigration means when the species moves out from its population.
Emissary Veins : Emissary veins are the veins in scalp which connect the extracranial venous system and intracranial venous system.
Endogenous Pacemakers : Endogenous Pacemakers is the body's internal biological clocks.
Endogenous Rhythms : Endogenous Rhythms is the biological clock regulated by organism and is not dependent on external factors.
Endolymph : Endolymph is the clear fluid that can be found in membranous labyrinth of the inner ear and is also called scarpa fluid.
Endolymphatic Sac : Endolymphatic sac is the membranous structure in the inner ear.
Endoparasite : Endoparasites are the parasite which live inside the body of host. eg: tapeworm, roundworm etc.
Endoplasmic Reticulum : Endoplasmic reticulum is a membrane-bound cell organelle present in cytoplasm of the cell.
Endoskeleton : Endoskeleton is the skeleton within the body which provides support and protection.
Entomophily : Cross pollination by insects is called Entomophily.
Enzymology : Enzymology is the scientific study of chemical nature, biological activity and biological significance of enzyme.
Eosinopenia : Eosinopenia is decrease in number of eosinophils in body then the normal range.
Eosinophilia : Eosinophilia is increase in number of eosinophils in the body then the normal range.
Eosinophils : Eosinophils is the type of white blood cells which fights the parasite in the body.
Epidermis : Epidermis is the outer layer of skin.
Epiphysis : Epiphysis is the round and expanded part in the end of long bone which forms joints with other bones.
Epiphytic Root : Epiphytic roots are the roots which grows on other plant's surface and not in soil.
Equilibrioception : Equilibrioception is a sense of balance or balance system in the humans and animals which helps to prevent from falling.
Erthrocytopenia : Erthrocytopenia is the decrease in number of red blood cells.
Erythrocytosis : Erthrocytopenia is the increase in number of red blood cells.
Erythropoiesis : Erythropoiesis is the process of production of red blood cells.
Etiology : Etiology is the scientific study of cause of diseases.
Eupnea : Eupnea is the normal breathing.
Eustachian Tube : Eustachian tube is the tube which connects nasopharynx to middle ear and functions mainly to equalize air pressure between atmosphere and inner ear.
Evolutionary Biology : Evolutionary Biology is the study of evolutionary processes in living organisms over time.
Exobiology : Exobiology is the study of life outside the earth.
Exogenous Rhythms : Exogenous Rhythms is the biological clock which is influenced by environmenal factors like light, temperature etc.
Exogenous Zeitgebers : Exogenous Zeitgebers is external cues, including light, that help to regulate the internal biological clocks.
Exoskeleton : Exoskeleton is the skeleton outside body (hard covering outside the body) which provides protection. eg: crab, snail, cockroach etc.
Ex-Situ Conservation : Ex-situ conservation is the method of conserving all living organisms of man-made environment similar to their natural habitats.
Extension : Extension is a movement of a joint that increases the angle between two bones.
External Respiration : External Respiration is the exchange of gases with the external environment.
Exteroceptor : Exteroceptor is any receptors which receives external stimuli like from sense organs.
Extracellular Digestion : Extracellular Digestion is the digestion which occurs outside the cell. eg: digestion in human is extracellular.
Extracellular Enzyme : Extracellular enzymes, also called exoenzymes are the enzymes which work outside the cell.
Extracranial : Extracranial means outside of OR exterior of cranium .
Extracranial Arterial System : Extracranial Arterial System is the network of artery outside cranium.
Extracranial Venous System : Extracranial Venous System is the network of veins outside cranium.
F
False Ribs : 8th to 10th Ribs which are connected to 7th Rib and not connected to sternum directly, this is called false ribs.
Fat Soluble Vitamin : Vitamin which are soluble in fats are the fat soluble vitamin. Vitamin A, D, E, K are fat soluble vitamin.
Faucial Tonsil : Faucial Tonsil also called palatine tonsil which are the pair of tonsil located at the back of throat on the left and right side.
Femoral Artery : Femoral Artery is the main artery which supplies blood to lower extremities.
Fertility : Fertility is the ability to reproduce offspring.
Fibrocartilage : Fibrocartilage are strong cartilage formed of cartilaginous tissue and white fibrous tissue having type I and II.
Fibrous Joints : Fibrous Joints are the type of joints which are immovable and bones are connected by fibrous tissue.
Flagella : Flagella is long microscopic hair-like structure useful for locomotion.
Flexion : Flexion is a movement of a joint that decreases the angle between two bones.
Floating Ribs : 11th and 12th Rib which are not connected to sternum and also not connected to any other ribs are called floating ribs.
Flora : Flora means naturally growing plants in a particular region or time.
Folic Acid : Folic Acid, also known as Folate or Vitamin B9 is the water soluble vitamin.
Foremilk : Foremilk is the thin milk which has low fat content which the baby first drinks during breastfeeding.
Forestry : Forestry is the science of planting and taking care of trees in forest.
Formalin : Formalin is the aqueous solution of formaldehyde used as disinfectant, antiseptic and to preserve biological specimens.
Fovea : Fovea is the small depression in retina where the visuals is most clearly captured.
Frontalis Muscle : Frontalis Muscle is thin and quadrilateral in form which covers part of forehead helping for facial expresions.
Frugivores : Frugivores are the fruit eating animals.
Frustule : Frustule is the silica based cell wall of Diatoms.
Fundus of Stomach : Fundus is the dome shaped region above and left of cardia in stomach.
Fusiform Root : Fusiform Root are the modified roots which are swollen in middle and gradually tappers at both end forming spindle shaped structure.
G
Galactorrhea : Galactorrhea is the milky discharge from nipples which is not related to breastfeeding or pregnancy.
Gamopetalae : Gamopetalae includes plants with fused petals. Now Gamopetalae is considered as artificial group.
Ganglion : Ganglion is the collection of nerve or say the group of nerve cell in the body.
Gelatin : Gelatin is colorless, odourless, tasteless, jelly-like protein which is generally obtained from bones.
Gelatinous sheath : Gelatinous sheath is the layer comprises of collagen fibres surrounding the cells of cyanobacteria.
Genetics : Genetics is the branch of biology concerned with the study of genes, genetic variation and the heredity in organism.
Genus : Genus is one of level of classification in taxonomy which is the group of similar species.
Gliding joint : Gliding joint is the bone joint having flat or slightly round articular surface which allows sliding or gliding movement.
Glycogenolysis : Glycogenolysis is the process by which glycogen is converted to glucose in body.
Gnathostomata : Gnathostomata is a division of subphylum of chordate which includes all vertebrate having jaw.
Golgi Apparatus : Golgi apparatus is a membrane bound organelle found in the cells.
Gram Negative Bacteria : Gram Negative Bacteria are the bacteria having cell wall made up of thin peptidoglycan layer. Gram Positive or Negative is distinguished based on gram stain test.
Gram Positive Bacteria : Gram Positive Bacteria are the bacteria having cell wall made up of thick peptidoglycan layer. Gram Positive or Negative is distinguished based on gram stain test.
Green House Effect : Green House Effect is the trapping of sun's heat close to earth surface by green house gases.
Guanotelism : Guanotelism is the process of elimination of guanine from organism.
Gustatoreceptor : Gustatoreceptor is the type of chemoreceptor found on tongue which sense the taste.
Gymnosperms : Gymnosperms are the plants with no flowers and their seeds are naked.
H
Haematopoietic Stem Cell : Haematopoietic Stem Cell is the stem cell found in bone marrow which generates all the blood cells.
Haematopoietic System : Haematopoietic System is the system in our body which is involved in the generation of blood cells.
Haemocyanin : Haemocyanin is a blue colour copper-containing blood pigment which is a second most abudant after haemoglobin.
Haemoglobinometer : Haemoglobinometer is a apparatus for determining how much haemoglobin is in blood.
Hard Palate : Hard Palate is the bony part of palate which forms the front part of mouth roof.
Heart Rate : Heart Rate also called Pulse Rate means number of times the heart beats per minute.
Hemiparesis : Hemiparesis means partial paralysis of one side of body which includes one arm and one leg of same side.
Hemiplegia : Hemiplegia means paralysis of one side of body which includes one arm and one leg of same side.
Herbaria : Herbaria is the collection of dried plants used for scientific study.
Herbarium : Herbariaum is the dried and labelled plant specimens kept in a storehouse and used for scientific study.
Herbivores : Herbivore are the plant eating animal.
Hereditary : Hereditary is the transmission of character from one generation to other generation in living organisms.
Heterodont : "Animals which have four different types of teeth; Incisors (I), Canines (C), Premolars (PM) and Molar (M) is called Heterodont."
Heterokaryon : Heterokaryon is a hybrid cell that contains two or more genetically different nuclei.
Heterophagic Intracellular Digestion : Heterophagic Intracellular Digestion is a process in which cell engulf and breaks down the food particles etc. within the cell.
Heterotrophic Nutrition : Heterotrophic Nutrition is the nutrition that organism get from other sources as they can't synthesize their own food.
Hindmilk : Hindmilk is the thick milk which has high fat content which the baby drinks during the end of breastfeeding.
Hinge Joint : Hinge Joint is the bone joint which allows the movement only in one plane.
Histology : Histology is the microscopic study of tissues and organs.
Holard : Holard is the total amount of water present in soil.
Homeothermic Animals : Homeothermic Animals are the animals which can maintain constant internal body temperature in a particular range.
Homodont : Animals which have all same types of teeth is called Homodont.
Human Biology : Human Biology is the study of human species, their evolution, genetics, heredity, anatomy and other aspects.
Humification : Humification is the process of formation of humus.
Humus : Humus is a dark organic substances formed by decaying of animal or plant matter.
Hyaline Cartilage : Hyaline Cartilage are the translucent cartilage that is present on many bone joints.
Hyaloid Canal : Hyaloid Canal is the small transparent canal passing through viterous humour from lens to optic disc in eyes.
Hyaloplasm : Hyaloplasm is the portion of cytoplasm without any cell organelles.
Hydrolase : Hydrolase is the class of enzyme which breakdown large and complex food into smaller ones with help of water.
Hydrological Cycle : Hydrological Cycle is the circulation of water molecules through atmosphere and land.
Hydrophily : Hydrophily is the rare phenomenon in which pollination happens in water.
Hydroponics : Hydroponics is a technique of growing or culturing the plants by placing their root in nutrients solution.
Hyperpnea : Hyperpnea is deep breathing.
Hypodermis : Hypodermis is the inner layer of skin.
Hypopharynx : Hypopharynx is the lower part of pharynx. It is called Laryngopharynx.
I
Immigration : When the species move in from outside in a population it is called immigration.
Immunology : Immunology is the study of the immune system in all organisms.
In Vitro Fertilization : In Vitro Fertilization (IVF) is the process in which the women's ovum is fertilized by sperm outside the body in a lab and then transferred in the uterus.
In Vivo : In Vivo means within living organisms; in the living organisms.
Incipient Plasmolysis : Incipient Plasmolysis is the point at which plasmolysis just starts.
Incisor Teeth : Incisor Teeth are the teeth in front of mouth.
Infarction : Infarction means death of tissue due to failure of blood supply.
Infection : Infection means any harmful bacteria, viruses, yeast, fungi, yeast and parasites etc. entering and multiplying in our body.
Infertility : Infertility is the inability of couple to reproduce.
Inflammation : Inflammation is the response of body's immune system to any harmful pathogen, injury, foreign body etc.
Infradian Rhythms : Infradian Rhythms is the biological cycle of more then 24 hours of circadian cycle. eg: menstrual cycle in women.
Innate Immunity System : Innate Immunity System is the immune system which first immediately respond to any issue in body.
Innervated Muscle : Innervated Muscle is the muscle supplied with the nerves (nerve entering the muscle).
In-Situ Conservation : In-situ Conservation is the method of conserving all the living organisms in their natural habitats.
Integumentary System : Integumentary System is the body system consisting mainly of skin and some other organs which forms the outermost layer of our body.
Internal Respiration : Internal Respiration is the exchange of gases between cells and is also called cellular respiration.
Internode : Internode is the space between two nodes in plant stem.
Interoceptor : Interoreceptor are any receptor which recieves internal stimuli like from internal organs etc.
Intra-articular injections : Intra-articular injections is the type of injection inserted into a joint.
Intracardiac injections : Intracardiac injections is the type of injection given into the muscle or ventricles of the heart.
Intracavernous injections : Intracavernous injections is the type of injection given into the base of the penis.
Intracellular Digestion : Intracellular Digestion is the digestion which occurs within the cell. eg: digestion in Hydra is intracellular digestion.
Intracellular Enzyme : Intracellular enzymes, also called endoenzymes are the enzymes which work inside the cell.
Intracranial : Intracranial means inside OR interior of cranium.
Intracranial Arterial System : Intracranial Arterial System is the network of artery inside cranium.
Intracranial Venous System : Intracranial Venous System is the network of vein inside cranium.
Intradermal (ID) injections : Intradermal (ID) injection is the type of injection inserted in the middle layer of the skin called the dermis.
Intradetrusor injections : Intradetrusor injections is the type of injection inserted into the muscle in the wall of the bladder.
Intramuscular (IM) injections : Intramuscular (IM) injections is the type of injection inserted deep into a muscle.
Intraocular injection : Intraocular or Intravitreal injection is the type of injection inserted into the jelly-like fluid in the eye.
Intraosseous injections : Intraosseous injections is the type of injection inserted into the bone marrow.
Intraperitoneal injections : Intraperitoneal injections is the injection inserted within the abdominal cavity.
Intravenous (IV) injections : Intravenous (IV) injections is the type of injection inserted directly into veins.
In-Vitro Test : In-Vitro Test is the method of study or experimenting in a controlled artificial environment outside of living organisms. Eg: Studying a cell of Living Organisms under microscope in Lab.
Involuntary Muscle : Involunatry Muscle are the muscle which work on there own and is not consciously controlled. Eg: cardiac muscle.
Iris : Iris is the circular coloured part containing pupil in the center.
Ischemia : Ischemia is the inadequate blood supply to organ or a part of body.
Itis : "Itis" is the suffix which denotes diesease characterized by inflammation and or infection. Eg: Tonsilitis [Tosil +itis ] is the inflammation/infection of tonsil.
J
Joints : Joints are the point at which bones articulate.
K
Karyokinesis : Karyokinesis is the process in which nucleus divides into two daughter nuclei.
Kingdom : Kingdom is the highest level of classifications in taxonomy.
L
L1 Vertebrae : L1 is the first vertebrae of lumbar column of spine.
L2 Vertebrae : L2 is the second vertebrae of lumbar column of spine.
L3 Vertebrae : L3 is the third vertebrae of lumbar column of spine.
L4 Vertebrae : L4 is the fourth vertebrae of lumbar column of spine.
L5 Vertebrae : L5 is the fifth vertebrae of lumbar column of spine.
Lacrimal Gland : Lacrimal Gland is sometimes also called tear gland as it secretes tears and is located at upper lateral side of eye balls.
Lactobacillus : Lactobacillus is lactic acid producing bacteria responsible for conversion of milk to curd.
Laryngopharynx : Laryngopharynx is the lower part of pharynx.
Left Colic flexure : Left Colic Flexure, also called Splenic flexure is the sharp bending of transverse colon and descending colon close to spleen.
Leucopenia : Leucopenia is the decrease in the number of white blood cells.
Leukocytosis : Leukocytosis is the increase in number of white blood cells.
Leukopoiesis : Leukopoiesis is the process of production of white blood cells.
Levator Muscle : Lavator muscle is a muscle which raises a body part.
Levator Veli Palatini : Levator Veli Palatini is a muscle of soft palate involved in swallowing.
Lichen : Lichens are organisms formed by the symbiotic association of Photobiont (algae) and Mycobiont (fungi).
Lichenology : Lichenology is the branch of mycology in biology which deals with study of Lichens.
Ligament : Ligament is strong band of fibrous tissue attaching bone to bone and help to restrict their movement and prevent dislocation.
Lingual Artery : Lingual Artery is artery which mainly supplies blood to tongue, sublingual gland, gingiva and oral mucosa of the floor of the mouth.
Locomotion : Movement of living organisms from one place to another is called Locomotion.
Lower Motor Neuron : Lower Motor Neuron are the motor neuron originating from spinal cord and then innervates muscles and other glands.
Lymphatic System : Lymphatic System is the part of immune system consisting of a large network of lymphatic vessels and some other organs which helps to circulate lymphatic fluid.
Lysosomes : Lysosomes also called suicide bags are the membrane-bound cell organelles which contains certain enzymes in it.
M
Macronutrient : Macronutrient are the nutrients required in relatively large quantity.
Malacophily : Pollination by snails is called Malacophily.
Mangifera Indica L. : Mangifera Indica L. is the scientific name for Mango.
Marsupials : Marsupials are the mammals with the external pouch, inside which a newborn grows. eg: Kangaroo
Mature Milk : Mature Milk is produced approximately after 10- 14 days of childbirth and lasts until the termination of breastfeeding.
Maxillary Artery : Maxillary Artery is the artery which supplies the blood to deep structures of face.
Mechanoreceptor : Mechanoreceptor are the type of receptors which are sensitive to touch & pressure.
Melanin : Melanin is the natural pigment found in our body and is responsible for the colour of our skin, hair and iris ( part of eye).
Membranous Labyrinth : Membranous Labyrith is the collection of fluid filled sac and chambers which contain the receptors for the senses of balance and hearing.
Menarche : Menarche is the first menstrual cycle after the onset of puberty.
Menecephalon : Menecephalon means Midbrain.
Menopause : Menopause is the natural process in which the menstrual cycle of women ends in age around 45 - 55yrs.
Menstrual Cycle : Menstrual Cycle is the natural process in which endometrial lining of uterus breakdowns which is expelled as vaginal blood through vaginal canal.
Metabolism : Metabolism means breaking and making of new molecules which produces energy in our body.
Microclimate : Microclimate is the climate of a small area which differs from its surrounding area.
Microfibrils : Microfibrils is a fiber-like strand, consisting of glycoproteins and cellulose.
Micronutrients : Micronutrinets are the nutrients required in very small quantity.
Mitochondrion : Mitochondrion is the membrane bound cell organelles found in cytoplasm of cell.
Molar Teeth : Molar Teeth are the large and flat teeth in the back of mouth.
Molecular Biology : Molecular Biology is the branch of biology which deals with the study of macromolecules at the molecular level.
Moniliform Root : Moniliform Roots are roots which are swollen at regular intervals and are called beaded roots.
Monocotyledon : Monocotyledon Seed are the seed having single cotyledon.
Monoculture : Monoculture is the cultivation of one crop at a time.
Monocyte : Monocyte is one of the largest type of white blood cells in our body.
Monocytopenia : Monocytopenia is the decrease in number of monocyte count then the normal range.
Monocytosis : Monocytosis is the increase in the number of monocyte count then the normal range.
Monograph : Monograph is the information or the detailed study of the particular taxonomical group.
Monoparesis : Monoparesis means partial paralysis of any one limb eg: one arm or one leg
Monoplegia : Monoplegia means paralysis of any one limb eg: one arm or one leg
Morphology : Morphology is a branch of biology which deals with the study of form and structure of living organisms like plants and animals.
Mounting : Mounting in biology means placing a sample on slide for preservation or display or to observe and study under microscope.
Mucilagenous sheath : Mucilagenous sheath is the layer comprises of cellulose fibers surrounding the cells of cyanobacteria.
Mule : Mule is the hybrid offspring of male donkey and female horse.
Multicellular Organism : Multicellular Organism are the organisms made up of multiple cells.
Muscular Movement : Muscular Movement performed by muscles, with the help of bones and joints to move from one location to another is a type of locomotory movement.
Musculus Uvulae : Musculus Uvulae is a muscle of soft palate involved in the movement of uvula.
Mycobiont : Mycobiont is the fungal component (fungii) of lichen which absorbs water.
Mycology : Mycology is the branch of biology which deals with the study of fungi.
Myofibrils : Myofibrils are long contracile fibril found in muscle cell.
Myophily : Pollination by flies is called Myophily. eg: pollination by bees
Myrmecophily : Pollination by ants is called Myrmecophily.
N
Napiform Root : Napiform Root are the roots which are nearly shperical and swollen at top and sharply tapers towards the other ends.
Nasopharyngeal Tonsil : Nasopharyngeal tonsil is the mass of lymphatic tissue located behind nasal cavity. It is also called adenoid tonsil or pharyngeal tonsil.
Nasopharynx : Nasopharynx is the nasal part of pharynx located above the level of soft palate and behind the nose.
Natality : Natality means birth rate.
Natural Habitant : Natural Habitat is the natural environment in which animals and plants usually live.
Necrosis : Necrosis is the uncontrolled death of cell due to external factors.
Neoplasm : Neoplasm is the abnormal growth of tissue in a part of the body which may be benign or malignant.
Nephridia : Nephridia is the tubular excretory organ found in many invertebrates.
Nephron : Nephron is a minute coiled tubules of which kidneys are made. Nephron are functional unit of kidneys.
Neurilemma : Neurilemma also called Schwann's sheath is a membranous sheath which covers the axon of neurons.
Neurobiology : Neurobiology is the study of nervous systems and its functions.
Neurofibril : Neurofibril are contractile fibril found in nerve cell.
Neuromuscular Junction : Neuromuscular Junction is the connection between neuron and muscle fibers.
Neuro-parasitology : Neuro-parasitology is the study of parasite that can control the nervous system of the host.
Neuroplasm : Neuroplasm is the cytoplasm of nerve cell.
Neuro-transmitter : Neuro-transmitter, also called chemical messenger are the molecules which helps to transmit chemical signals between two neurons.
Neutropenia : Neutropenia is the decrease of neutrophils count than the normal range.
Neutrophilia : Neutrophilia is the increase of neutrophils count than the normal range.
Neutrophils : Neutrophils is the type of white blood cells which fight infection in our body.
Niacin : Niacin, also called Vitamin B3 is the water soluble vitamin.
Nocturnal Rhythms : Nocturnal Rhythms is the biological cycle mainly associated with night time activity.
Non-Pitting Oedema : Oedema is the swelling due to collection of fluid, when pressed on this swelling it does not forms depresion.
Non-secretory Proteins : Non-secretory Proteins are the protein synthesized within the cell and stays within the cell.
Nuclear Biology : Nuclear Biology is the study of effects of radiation and chemicals on the livings organisms.
Numerical Taxonomy : Numerical Taxonomy is a method of classification of organisms based on numerical values given to a particular characteristics of an organism.
Nutrition Science : Nutrition Science is the study of food and nutrients in it and their effects on health and diseases.
O
Occipital Artery : Occipital artery is the artery which supplies blood to back of the scalp and sternocleidomastoid muscles and deep muscles in the back and neck.
Occipitalis Muscle : Occipitalis Muscle is a thin and quadrilateral in form of muscle which covers part of skull.
Occipitofrontalis Muscle : Occipitofrontalis Muscle is the muscle which covers a part of skull and helps to make facial expressions.
Oedema : Oedema is the swelling due to collection of fluid in a particular part of body.
Olfactoreceptor : Olfactoreceptors is the type of chemoreceptor which sense the smell.
Oligouria : Oligouria means low urine output; less urine production.
Open Circulatory System : Open Circulatory System is the type of circulatory system in which blood is pumped in the body cavity and organs are directly bathed with blood.
Optic Nerve : Optic Nerve is the nerve which carries the image from retina of eyes to brain.
Orbicularis Oculi Muscle : Orbicularis Oculi muscle is the muscle which act to close eyelids.
Ornithophily : Pollination by birds is called Ornithophily.
Oropharynx : Oropharynx is the middle part of pharynx behind the mouth.
Osmoreceptor : Osmoreceptors is the sensory receptor which detects changes in osmotic pressure.
Osmoregulation : Osmoregulation is a process in which the amount of water and concentration of various solutes and ions in organism are maintained.
Ostomy : Ostomy is the surgically created opening from inside of body to outside. eg: Tracheostomy (Trache + Ostomy) is the surgically created opening in trachea.
Oviparous : Oviparous are the animals which lays eggs.
P
Palate : Palate is the roof of mouth which separates oral cavity from nasal cavity.
Palatine Tonsil : Palatine Tonsil are the pair of tonsil located at the back of throat on right & left side.
Palatoglossal Muscle : Palatoglossal Muscle is the muscle of soft palate involved in swallowing.
Palatopharyngeal Muscle : Palatopharyngeal Muscle is the muscle of soft palate involved in breathing.
Pantothenic Acid : Pantothenic Acid, also known as Vitamin B5 is the water soluble vitamin.
Papillary Layer : Papillary Layer is the outermost layer of dermis.
Papillary Ridges : Papillary Ridges are the linging on the skin that you see as fingerprint.
Paraparesis : Paraparesis means partial paralysis of lower body which includes both legs.
Paraplegia : Paraplegia means paralysis of lower body which includes both legs.
Parasitology : Parasitology is the study of parasite and it's interaction with it's host.
Paresis : Paresis means partial paralysis.
Pathology : Pathology is the scientific study of diseases.
Peptide Bond : Peptide bond is a bond between amino acids formed when the amino acid group joins with the carboxyl group of another amino acid with removable of water.
Peptidoglycan : Peptidoglycan also called murein is the polysaccharides which forms the cell wall of many bacteria.
Peri-articular injections : Peri-articular injections is type of injection inserted into the soft tissue close to a joint.
Perichondrium : Perichondrium is a layer of connective tissue that envelopes the cartilage of bones.
Peripheral Pulse : Peripheral Pulse is the pulse away from heart; eg: radial pulse of radial artery on wrist
Peristalsis : Rhythmic wave of contraction and relaxation of these muscles which helps in passage of food through oesophagus is called Peristalsis.
Phagocytic Cell : Phagocytic Cells are the type of white blood cells which have ability to ingest any foreign particle, bacteria, dead cells etc.
Phagocytosis : Phagoytosis is the process in which the phagocytic cell engulf the larger particles, dead cells, bacteria etc. using there plasma membrane and ingest it.
Phanerogams : Phanerograms are any plants that produces seed for reproduction.
Pharyngeal Tonsil : Pharyngeal Tonsil is the mass of lymphatic tissue located behind nasal cavity. It is also called Adenoid Tonsil or Nasopharyngeal Tonsil.
Pharynx : Pharynx is a 5 inch long tube which connects nose to the larynx & mouth to oesphagus.
Photobiology : Study of beneficial or bad impact of light on living organisms
Photobiont : Photobiont is the photosynthetic component (algae) of lichen which prepares food.
Photosynthetic Roots : Photosynthetic Roots are the roots having green chlorophyll pigment for photosynthesis.
Phycology : Study of algae
Phylloquinone : Phylloquinone, also called Phytonadione or Vitamin K1 is the fat soluble vitamin.
Phylogeny : Phylogeny means the evolutionary history of the group of organism.
Phylum : Phylum is the next level classification after kingdom and is more specific.
Physiology : Physiology is the study of function of various part of living organism.
Pinocytosis : Pinocytosis is the process by which the cell intakes fluid material and other solutes dissolved in it.
Pitting Oedema : Oedema is the swelling due to collection of fluid, when pressed on this swelling it forms depresion remaining some time.
Pivot Joint : Pivot Joints also called rotatory joints are the joints which allow rotatory movement of joints around a single axis.
Plamar flexion : Plamar flexion is the downward movement of wrist.
Plant Physiology : Study of plant function and behaviour, in terms of their inner structures and functions
Plantarflexion : Plantarflexion is the downward movement of foot.
Plasmolysis : Plasmolysis is the shrinkage of protoplasm in a plant cell due to removal of water.
Plastids : Plastids are the membrane bound organelles found in the cell of plants and certain other organisms.
Plegia : Plegia means paralysis.
Poikilothermic Animals : Poikilothermic Animals are the animals which can change their internal body temperature according to environment.
Poison : Poison is the toxin which enters our body by swallowing, inhaling or absorption through the skin.
Polygamy : Ploygamy is the mating system in which either male or female mate with multiple partners of opposite sex.
Polypeptide : Polypeptide is a chain of amino acid linked by peptide bond forming a protein molecule.
Polypetalae : Polypetalae was the taxonomical group which includes plants with free petals; unfused petals. Now polypetalae is considered as artificial group.
Polyphyodont : Animals in which their teeth continuously keeps on replacing throughout their lives is called Polyphyodont.
Polyuria : Polyuria means high urine output; excessive urine production.
Popliteal Artery : Popliteal Artery is the located behind the knee and supplies blood to lower leg.
Population Density : Population Density is defined as number of individual living per unit area.
Population Explosion : Population Explosion is the sudden increase in population of a species.
Posterior Auricle Artery : Posterior Auricle Artery is the small artery which supplies some part of scalp and some part of ear.
Premolar Teeth : Premolar Teeth, also called bicuspids teeth are the teeth located between canine and molar teeth in the side of mouth.
Prone Position : Prone position is the position when a person lies on this stomach, facing his back upward.
Proprioception : Proprioception is the sense of self-movement, force and body position and is also called kinesthesia.
Prosencephalon : Prosencephalon means forebrain.
Proteolysis : Proteolysis is the breakdown of proteins into smaller amino acids or polypeptides.
Protista : Protista is the kingdom of unicellular eukaryotes.
Protractor Muscle : Protractor muscle is a muscle which pulls a body part forward.
Pseudopodia : Pseudopodia are temporary projections of the cytoplasm of a cell which helps it for locomotion.
Pulse : Pulse is the rhythmic beats felt in the artery due to heart beats.
Pulse Point : Pulse points are the areas on body surface where artery's pulse can be easily felt.
Pulse Rate : Pulse Rate means number of times the heart beats per minute.
Pulse Volume : Pulse Volume is the degree of expansion of artery.
Pupil : Pupil is the circular black part in the center of iris through which lights enters.
Pyloric Sphincter : Pyloric Sphincter is located at the end of stomach & is the muscular valve which opens and close to allow food from stomach to pass to small intestine.
Pylorus : Pylorus is the opening of stomach in duodenum which is first part of small intestine.
Pyrexia : Pyrexia is the increase in body's temperature, also called fever.
Pyridoxine : Pyridoxine, also called Vitamin B6 is the water soluble vitamin.
Q
Quadraparesis : Quadraparesis means partial paralysis of all four limb i.e both arms & legs
Quadraplegia : Quadraplegia means paralysis of entire body below neck including both arms & both legs.
Quasifluid : Quasifluid means partly liquid and partly solid.
R
Radial Artery : Radial Artery is the artery in the inner side of forearm which is also used to count heart beats and is one of the branch of brachial artery.
Radiobiology : Study of ionizing radiation and its interactions with human beings
Ready Mount : Ready Mount or the prepared slide is the microscopic slide which is long lasting and prepared by professionals with a long process.
Receptors : Receptors are the nerve endings which are capable of receiving and collecting the information to send to brain.
Recticular Layer : Recticular Layer is the innermost layer of dermis.
Rectus Muscle in Eyes : Rectus muscle in eyes are the muscles which controls the movement of eyes.
Renal Artery : Renal Artery is the artery which carries oxygenated blood from heart to kidneys.
Renal Vein : Renal Vein is the vein which carries deoxygenated blood from kidneys to heart.
Residual Volume : Residual Volume is the amount of air that remains in lungs after maximum forceful exhalation.
Respiratory Rate : Respiratory Rate also called Breathing Rate is the number of breath per minute.
Resting Heart Beat : Resting Heart Beat is the normal heart beats between 60 - 100 beats per minute.
Retina : Retina is the light sensitive tissue at the back of eye ball which sends the image formed to brain.
Retinol : Retinol, also known as Vitamin A is the fat soluble vitamin.
Retractor Muscle : Retractor muscle is a muscle which pulls a body part backward.
Rhinencephalon : Rhinencephalon is the part of brain involved in the sense of smell.
Rhombencephalon : Rhombencephalon means hindbrain.
Riboflavin : Riboflavin, also called Vitamin B2 is the water soluble vitamin.
Right Colic flexure : Right Colic Flexure, also called Hepatic flexure is the sharp bending of transverse colon and ascending colon close to liver.
Rods in Eyes : Rods in eyes are the type of photoreceptor which are sensitive to deam light and black & white images.
Rough Endoplasmic Reticulum : Rough Endoplasmic Reticulum is the endoplasmic reticulum having ribosome attached to it.
S
Sacroplasm : Sacroplasm is the cytoplasm of muscle cell.
Saddle Joint : Saddle Joints are the joints which allows joints movement in two plane: flexion-extension and abduction-adduction.
Sclera : Sclera is the white colour external layer of eyes.
Scutum : Scutum is the part of exoskeleton of insects.
Secretory Proteins : Secretory Proteins are the protein synthesized within the cell and then released out of cell.
Seed Coat : Seed coat is the envelope that covers the entire seed excepts the tiny pore.
Semen : Semen is the fluid containing the sperm and various other glandular secretions ejaculated by the male during copulation.
Sexual Reproduction : Sexual Reproduction is a type of the reproduction in which male and female are involve to produces offspring.
Sigmoid Colon : Sigmoid Colon is the curved shaped part of colon between descending colon and rectum.
Signs & Symptoms : Signs is the observation and finding by doctor while symptoms is the observation of the affected person himself.
Smooth Endoplasmic Reticulum : Smooth Endoplasmic Reticulum is the endoplasmic reticulum which don't have ribosome attached to it.
Soft Palate : Soft Palate is the muscular part of palate which forms the back part of mouth roof.
Soil Biology : Study of living organisms in the soil
Space Biology : Space Biology is the study of living organisms and their surroundings environment in the outer space.
Spermatophyte : Spermatocyte are any group of plants which produces seeds including Angiosperms and Gymnosperms.
Sphincter : Sphincter is a circular muscle present in the inner wall of stomach, anus etc for closure and opening.
Spinal Cord : Spinal cord is the cyclindrical cord like structure extending from brain stem.
Squamous Cell Layer : Squamous Cell Layer is the layer located above basal cell layer in epidermis.
Stapes : Stapes is the smallest bone in human body and is located in the inner ear.
Statoacoustic Receptor : Statoacoustic Receptor are the found in internal ear involved in hearing & body's balancing system.
Sterile : Sterile means infertility; inability to reproduce offspring.
Sternal Notch : Sternal Notch also called jugular notch is the depression in the top of the sternum between its articulations with the two clavicles.
Stomach : Stomach is the muscular sac-like organ located in the upper left portion of the abdominal cavity which helps to digest food.
Stratum Corneum Layer : Stratum Corneum Layer is the outermost layer of epidermis.
Stratum Granulosum Layer : Stratum Granulosum Layer is the granule layer located above squamous cell layer in epidermis.
Stratum Lucidum Layer : Stratum Lucidum Layer is the thin layer of dead skin cells in epidemis.
Striated Muscles : Striated Muscles, also called Skeletal Muscles are the muscle which are attached to bone.
Structural Biology : Study of the structure of biological molecules
Struvite Stone : Struvite Stone is the type of kidney stone which are formed in response to bacterial infection caused by urea splitting bacteria.
Subcutaneous (SC) injections : Subcutaneous (SC) injections is the type of injection inserted in the innermost layer of the skin called the subcutis or hypodermis.
Suberin : Suberin is a water proof material present in the cell wall.
Supine Position : Supine position is the position when a person lies on this back, facing his chest upward.
Suture : Suture is the type of joint which remains open till growth and then ossify. eg: suture of skull.
Symbiosis : Symbiosis is an evolved interaction or close relationship between species which mutually benefits each other.
Synapse : Synapse is the junction between two neurons across which the impluse pass from one neuron to another.
Synaptic Cleft : Synaptic Cleft also called synaptic gap is the tiny space between two neurons.
Synaptic Delay : Synaptic Delay is the delay in transmission of nerve impulses across synapse.
Synarthroses : Synarthroses are the type of joints which are immovable.
Synergist Muscle : Synergist Muscle is the muscle which assist the movement of agonist muscle.
Synovial Capsule : Synovial Capsule, also called joint capsule is made up of two layers of tissue present between the joints and seals the synovial fluid.
Synovial Cavity : Synovial Cavity is the space between the bone joints filled with synovial fluid.
Synovial Fluid : Synovial fluid is the fluid found between the joints.
Synovial Joints : Synovial Joints is the type of joint found between bones which can move and has joint cavity filled with synovial fluid.
Synovial Membrane : Synovial membrane, also called synovium is the inner layer of joint capsule.
Systems Biology : Study of biological systems
Systole : Contraction of cardiac chamber is termed as systole.
T
T1 Vertebrae : T1 Vertebrae is the first vertebrae of thoraic column of spine.
T10 Vertebrae : T10 Vertebrae is the tenth vertebrae of thoraic column of spine.
T11 Vertebrae : T11 Vertebrae is the eleventh vertebrae of thoraic column of spine.
T12 Vertebrae : T12 Vertebrae is the twelfth vertebrae of thoraic column of spine.
T2 Vertebrae : T2 Vertebrae is the second vertebrae of thoraic column of spine.
T3 Vertebrae : T3 Vertebrae is the third vertebrae of thoraic column of spine.
T4 Vertebrae : T4 Vertebrae is the fourth vertebrae of thoraic column of spine.
T5 Vertebrae : T5 Vertebrae is the fifth vertebrae of thoraic column of spine.
T6 Vertebrae : T6 Vertebrae is the sixth vertebrae of thoraic column of spine.
T7 Vertebrae : T7 Vertebrae is the seveth vertebrae of thoraic column of spine.
T8 Vertebrae : T8 Vertebrae is the eighth vertebrae of thoraic column of spine.
T9 Vertebrae : T9 Vertebrae is the ninth vertebrae of thoraic column of spine.
Tachycardia : Tachycardia is the rapid heart beat greater then 100 beats per minute.
Tachypnea : Tachypnea is abnormally fast breathing.
Tactile Receptor : Tactile Receptors are the subtype of mechanoreceptor which are sensitive to touch.
Tango Receptor : Tango receptors are the subtype of machanoreceptor which are snesitive to pressure.
Tartar : Tatar is the hard yellow or brown calcified deposit that forms on the teeth and contributes to their decay.
Taste Buds : Tiny and numerous projection on tongue having sensory receptors are called taste buds.
Taxa : Taxa is the arrangement of hierarchy from kingdom to subspecies.
Taxidermy : Taxidermy is the art of preparing, preserving, stuffing the dead animals skin for the purpose of study and display.
Taxon : Taxon is the unit or a group of organisms.
Taxonomical Aids : Taxonomical Aids is the collections of samples or preserved organisms which help in the research for the identification of various taxonomical hierarchy.
Taxonomy : Taxonomy is the classification and arrangment of all living things.
Telencephalon : Telencephalon means cerebrum.
Temporal Artery : Temporal Artery is the major artery of head arising from external carotid artery.
Tendon : Tendon are tough cord-like fibrous connective tissue which attach muscle to bone.
Tensor Veli Palatini : Tensor Veli Palatini is one of the muscle of soft palate which is involved in swallowing.
Tentacles : Tentacles is the flexible, movable and elongated organ found in some living organisms.
Thalamencephalon : Thalamencephalon is the part of diencephalon which includes some of the stucture like thalamus, epithathalamus, metathalamus.
Thecodont : Animals in which each tooth is fixed in a separate socket present in jaw bones by gomphosis type of joint is called thecodont.
Thermoception : Thermoception is the body's ability to sense the temperature changes in its environment.
Thiamine : Thiamine, also called Vitamin B1 is the water soluble vitamin.
Thoracic Aorta : Thoracic Aorta is the part of aorta passing through chest region Or simply is the largest artery in the thoracic region.
Thrombocytopenia : Thrombocytopenia is the decrease in the number of platelets.
Thrombocytosis : Thrombocytosis is the increase in the number of platelets.
Thrombopoiesis : Thrombopoiesis is the process of production of platelets also called thrombocytes.
Thrombus : Thrombus is the blood clot formed inside the blood vessel.
Tissue Fluid : Tissue Fluid is interstitial fluid present in the spaces between cells of a tissue fluid.
Tocopherol : Tocopherol is the form of Vitamin E and is a fat soluble vitamin.
Tongue : Tongue is a muscular and fleshy organ which have triangular like shape.
Tonoplast : Tonoplast is the membrane which surrounds the vacuoles in a plant cell.
Tonsil : Tonsil are the masses of lymphoid tissue in the throat and are the part of lymphatic system.
Totipotency : Totipotency is the ability of a single cell to divide and form any type of cells and thereby giving rise to entire organism. eg: stem cell which can form any other types of cells of body.
Transitional Milk : Transitional milk is produced approximately from 4th day of childbirth which may last upto 2 weeks.
Transpiration : Transpiration is the loss of water in the form of vapours from the living tissues of aerial parts is called transpiration.
Transplantation : Transplantation is the process in which living tissue or a organ is removed from body and implanted in other part of body or other persons body.
Transverse Colon : Transverse colon is the largest and the most movable part of colon below stomach extending from right to left in abdominal cavity.
Triploblastic Animal : Triploblastic animals are the animal which are developed from three germinal layers.
Trophallaxis : Trophallaxis is the transfer of food stored in it's stomach to other insect of it's own community.
True Ribs : First 7 ribs which are directly connected to sternum are called True ribs.
Tuberous Root : Tuberous Root is the modified root also callec storage root as it functions as Storage Organ.
Tympanic Membrane : Tympanic Membrane is the cone shaped membrane which receives the sound vibration and then sends further. It is also called Ear Drum or Myringa.
U
Ulnar Artery : Ulnar artery is the artery in the outer edge of forearm and is one of the branch of brachial artery.
Ultradian Rhythms : Ultradian Rhythms is the biological cycle which is continuously repeated in 24 hours circadian cycle. eg: heart beat, blood circulation.
Unicellular Organisms : Unicellular Organisms are the organism made up of single cell.
Unisexual Organism : Unisexual Organism are the organism having only one type of reproductive organ either male or female reproductive organ.
Upper Motor Neuron : Upper Motor Neuron are the motor neuron originating in cerebral cortex which travels down to spinal cord.
Uremia : Uremia is the condition in which the level of urea in blood increase then the normal level due to kidney damage.
Ureotelic Animals : Ureotelic Organisms are the organisms which excrete nitrogenous waste in form of urea.
Ureotelism : Ureotelism is the process of elimination of urea from organism.
Ureter : Ureter is a duct by which urine is carried from kidney to urinary bladder.
Uric Acid Stone : Uric Acid stone is the type of kidney stone which may form due to low water intake or high protein diet consumption.
Uricotelism : Uricotelism is the process of elimination of nitrogenous waste in form of uric acid from organism.
Utricle in Ear : Utricle is a small organ in inner ear and is a part of balancing system which plays important role particularly in horizontal tilt.
V
Venom : Venom is the toxin which enters our body when organisms bite.
Venous Blood : Venous blood is the dark red deoxygenated blood in the veins.
Venous System : Venous System is the network of veins in the body.
Vertex In Head : Vertex is the highest point of head, also called cranial vertex.
Vesicle : Vesicle are single membrane bound organelle.
Vestibular Nerve : Vestibular Nerve is the sensory nerve which transmits body's balance related information ( Body position, acceleration & deacceleration ) from inner ear to brain.
Vestibulocochlear Nerve : Vestibulocochlear Nerve is the 8th cranial nerve which divides into cochlear nerve and vestibular nerve which transmits auditory & balance information from inner ear to brain.
Vitamers : Vitamers are the different forms of a particular vitamin.
Vitreous Humour : Vitreous Humour is the clear gel-like fluid present between the lens and retina.
Viviparous : Viviparous means giving birth directly to offspring. eg: Human, dogs etc.
Voluntary Muscle : Voluntary Muscle are the muscle which can be moved by one's own will.
W
Water Soluble Vitamin : Vitamin which are soluble in water are the water soluble vitamin. Vitamin B, C are water soluble vitamin.
Wet Mount : Wet Mount is the microscopic slide in which the samples is placed on slide and drop of a particular solution is added on it and then covered with coverslip.
Whole Mount : Whole Mount means placing the entire Organisms on slide for microscopic observation.
Whorling Movement : Whorling Movement is a type of locomotory movement which is performed by flagella.
X
Xylem : Xylem is the plant tissue which transfers water and nutrients from roots to every part of plant.
Z
Zoological Park : Zoological Park means Zoo.
Zoology : Zoology is the branch of biology which deals with the study of animals.
