After the depolarization phase of an action potential, the resting potential is restored by ________.
A) voltage-gated potassium channels opening and sodium channels inactivating
B) a decrease in the membrane's permeability to potassium and chloride ions
C) a brief inhibition of the sodium-potassium pump
D) the opening of more voltage-gated sodium channels

Question

Quizplus · Accepted Answer

During the repolarization phase of an action potential, voltage-gated potassium channels open, allowing potassium ions to flow out of the cell, and sodium channels inactivate, preventing further sodium entry. This restores the negative resting membrane potential.

After the Depolarization Phase of an Action Potential, the Resting