Each of the following is a correct relationship between action potential phase and channel status except A)depolarization; Na⁺channels open. B)repolarizing phase; Na⁺channels closed. C)repolarizing phase; K⁺channels open. D)hyperpolarizing phase; Na⁺channels open. E)hyperpolarizing phase; K⁺ channels open.

Question

Quizplus · Accepted Answer

During the hyperpolarizing phase of an action potential, sodium channels (Na+) are not open; they are in fact closed or inactivated, which helps to restore the resting membrane potential. Potassium channels (K+), on the other hand, may still be open, contributing to the hyperpolarization.

Each of the Following Is a Correct Relationship Between Action