14 results found

Search Results for: refractory

Refractory

refractory Not readily yielding to treatment. Origin: L.... Read More

Absolute Refractory Period

An occurrence after a neuron has fired an impulse where the neurone cannot fire another pulse for a short time directly... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Axon hillock

Axon Hillock Definition What is axon hillock? If you are familiar with the different parts of the neuron, the axon hillock... Read More

Refractory Period

(neurology) the time after a neuron fires or a muscle fiber contracts during which a stimulus will not evoke a response.The... Read More

Stern

stern Having a certain hardness or severity of nature, manner, or aspect; hard; severe; rigid; rigorous; austere; fixed;... Read More

Action potential

Definition noun A short-term change in the electrical potential on the surface of a cell (e.g. a nerve cell or muscle cell)... Read More

Down-regulation

Down-regulation (Science: physiology) development of a refractory or tolerant state consequent upon repeated administration... Read More

Brake

Brake 1. (Science: botany) a fern of the genus Pteris, especially. The P. Aquilina, common in almost all countries. It has... Read More

Ejaculation

Definition noun (biology) The act of ejecting or expulsion, as of the expulsion of semen from the male genital tract in... Read More

Gentles

Gentle 1. Well-born; of a good family or respectable birth, though not noble. British society is divided into nobility,... 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

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More