The period of time when Na⁺ channels are recovering from their inactive state and K⁺ channels are still open is the A)repolarization. B)absolute refractory period. C)relative refractory period. D)Repolarization and relative refractory period are correct.

Question

Quizplus · Accepted Answer

During the repolarization phase of an action potential, sodium channels are recovering from inactivation (becoming capable of opening again if the membrane potential were to decrease sufficiently), and potassium channels are open to allow potassium ions to exit the cell, which helps to restore the resting membrane potential. The relative refractory period overlaps with this phase because it is the time during which a stronger-than-normal stimulus is required to elicit another action potential, due to the fact that not all sodium channels have returned to their resting state and potassium channels are still open.

The Period of Time When Na+ Channels Are Recovering from Their

The Period of Time When Na⁺ Channels Are Recovering from Their