action potential(redirected from Action potential threshold)
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A momentary change in electrical potential on the surface of a cell, especially of a nerve or muscle cell, that occurs when it is stimulated, resulting in the transmission of an electrical impulse.
(Physiology) a localized change in electrical potential, from about –70 mV to +30 mV and back again, that occurs across a nerve fibre during transmission of a nerve impulse
the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals. Compare nerve impulse.
action potential- A brief electrical signal transmitted along a nerve or muscle fiber following stimulation.
See also related terms for nerve.
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|Noun||1.||action potential - the local voltage change across the cell wall as a nerve impulse is transmitted|