346 results found

Search Results for: organ

Organ

Definition noun, plural: organs A group of tissues that perform a specific function or group of functions Supplement An... Read More

The interstitium – a new biological organ?

Scientists found, apparently by accident, a new biological organ and they want it called "interstitium". The discovery was... Read More

Organ culture

Definition noun, plural: tissue cultures (1) The technique of cultivating organ primordia or pieces of tissue in the... Read More

Organization

Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More

Sense organ

Definition noun, plural: sense organs An organ or structure that has nerve endings capable of detecting and reacting to a... Read More

Floating organ

Floating organ --> wandering organ An organ with loose attachments, permitting its displacement. Synonym: floating organ,... Read More

Lymphoid organ

Definition noun, plural: lymphoid organs The organ of the lymphatic system, and carries out various immune... Read More

Target organ

target organ A tissue or organ upon which a hormone exerts its action; generally, a tissue or organ with appropriate... Read More

Accessory organs

Accessory organs --> supernumerary organs organs exceeding the normal number, which may develop from multiple foci of... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Microorganism

Definition noun, plural: microorganisms An organism that is microscopic or submicroscopic, which means it is too small to... Read More

Macroorganism

Definition noun, plural: macroorganisms Any macroscopic organism. Supplement Macroorganisms are large enough to be seen by... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Nervous system

Definition noun The organ system responsible mainly for coordination of bodily reactions, organ monitoring, and information... Read More

Ear

Ear 1. The organ of hearing; the external ear. in man and the higher vertebrates, the organ of hearing is very complicated,... Read More

Anatomy

Anatomy Definition Often we hear the term 'anatomy' while learning about the body and how it works. What is anatomy? What... Read More

Longitudinal section

Longitudinal Section Definition To describe the direction of movements and location of different body structures, a... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Respiratory system

Definition noun An organ system comprised of organs and structures associated for respiration or gas exchange Supplement An... Read More

Types of Transplants

Submitted to biologyonline.com on March 7, 2009 Published by biologyonline.com on March 29, 2009   Transplants are... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Organic

Definition noun, plural: organics (Chemistry) An organic compound; or any substance containing carbon-based compounds,... Read More

Chondrichthyes

Definition noun A taxonomic class comprised of cartilaginous fish Supplement Chondrichthyes is taxonomic superclass of... Read More

Flehmen response

Definition noun A behavior in certain animals wherein the animal curls back the upper lip thereby exposing the front teeth,... Read More

Disorganization

Disorganization Destruction of an organ or tissue with consequent loss of... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Organelle

An organelle refers to any of the various cellular structures that perform a distinctive function inside a cell. The cell is... Read More

Digestive system

Definition noun A system of organs in which the major function is to convert food into simpler, absorbable nutriments to... Read More

Immune system

Definition noun The organ system that is involved in protecting the organism from infection, infestation, and other... Read More

Phylum

Just like it is easy to identify and sort anything in the supermarkets when placed in the right section with proper display... Read More

Cochlear duct

The cochlear duct is the spiral tube in the bony canal of the cochlea. It is located on the outer wall of cochlea, between... Read More

Liver

Definition noun The glandular organ that stores and metabolizes nutrients, detoxifies, and produces bile Supplement In human... Read More

Analogous structures

In evolutionary biology, analogous structures are defined as biological structures having similar or corresponding functions... Read More

Urinary system

Definition noun The organ system concerned with the production and excretion of urine Supplement An organ system, (sometimes... Read More

Aplasia

Aplasia (Science: embryology) a lack of development of an organ or tissue or of the cellular products from an organ or... Read More

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Utricle

Definition noun (1) (anatomy) The part of the otolith organ found in the inner ear of vertebrates (2) (anatomy) The small... Read More