The phase at the end of an action potential when the membrane potential becomes more negative than it is at rest is the ________ phase.
A)threshold
B)depolarizing
C)repolarizing
D)hyperpolarizing
E)refractory

Question

Quizplus · Accepted Answer

The hyperpolarizing phase occurs when the membrane potential becomes more negative than the resting potential, often due to potassium channels remaining open longer than the duration of the action potential, allowing excess potassium to leave the cell.

The Phase at the End of an Action Potential When