Repolarization of a nerve occurs by

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During depolarization,an inward flux of sodium into the nerve occurs.During repolarization,an efflux of potassium out of the nerve occurs.The outward flow of potassium ions repolarizes the membrane and closes the sodium channels.The depolarization of a nerve involves a slow calcium influx.Calcium ions are bound to receptor sites within the ion channels of cell membranes during the resting stage of nerve conduction.Ca⁺⁺ ions are displaced during depolarization and are believed to be the most significant factor responsible for the influx of sodium into the nerve.

Repolarization of a Nerve Occurs by