10 results found

Search Results for: refractory period

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

Resting potential

Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... 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

Circulation

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

Sarcolemma

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