afterpotential wave


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afterpotential wave

[-pəten′shəl]
either of two smaller waves, positive or negative, that follow the main spike potential wave of a nerve impulse, as recorded on an oscillograph tracing of an action potential that propagates along a nerve fiber.

afterpotential wave

The wave produced after the action potential wave passes along a nerve. On the recording of the electrical activity, it will be either a negative or positive wave smaller than the main spike.
See also: wave