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(C) During the action potential,the depolarization phase is caused by the rapid influx of $Na^+$ ions into the neuron.Following this,the repolarizatio

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$K^+$ efflux

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(C) During the action potential,the depolarization phase is caused by the rapid influx of $Na^+$ ions into the neuron.Following this,the repolarization phase occurs to restore the resting membrane potential.Repolarization is primarily caused by the closure of voltage-gated $Na^+$ channels and the opening of voltage-gated $K^+$ channels.As a result,$K^+$ ions move out of the neuron (efflux),which makes the inside of the membrane negative again relative to the outside.

Repolarization of a nerve fiber is caused by which of the following?

Similar Questions

Differentiate between Resting potential and Action potential.

During the nerve impulse (action potential),which ion has the highest permeability in the membrane?

When a neuron is not conducting any impulse,the axonal membrane is comparatively more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.

The potential difference in the membrane,which is responsible for the conduction of an impulse,is brought about by a change in the membrane:

At the site of stimulation,the charge of the inner and outer surface of the membrane becomes reversed due to:

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