action potential

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action potential

n.
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.

action potential

n
(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

ac′tion poten`tial


n.
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.action potential - the local voltage change across the cell wall as a nerve impulse is transmittedaction potential - the local voltage change across the cell wall as a nerve impulse is transmitted
nerve impulse, nervous impulse, neural impulse, impulse - the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
References in periodicals archive ?
A model for compound action potentials and currents in a nerve bundle III: A comparison of the conduction velocity distributions calculated from compound action currents and potentials.
Keywords: Essential oil; Alpinia zerumbet; Alpinia speciosa; Sciatic nerve; Compound action potential
The third objective is to compare the variation in the Compound Action Current and Compound Action Potential as the parameters of the model are varied and to compare the Conduction Velocity Distributions predicted from these two signals recorded from nerve bundles with that predicted from histological examination.