Briefly describe the cellular events responsible for the refractory period (hint: discuss the mechanism of repolarization).

Briefly describe the cellular events responsible for the refractory period (hint: discuss the mechanism of repolarization):

The buildup of potassium during repolarization into hyperpolarization, that makes it more difficult for the stimulus to reach its threshold, is the events responsible for the refractory period. It is measured for the earthworm as the largest interval wherein the action potential (second spike) cannot be generated.

the areas around the equator