Which of these statements about the action potential is correct?
A)It has an all-or-none characteristic.
B)It has no refractory period.
C) It is triggered by repolarization to threshold.
D) It speeds transmission by any type of summation.

Question

Quizplus · Accepted Answer

The action potential has an all-or-none characteristic, meaning that it either happens fully or not at all. It also has a refractory period, during which another action potential cannot be initiated. The action potential is triggered by depolarization to threshold, not repolarization. Finally, the action potential speeds transmission by saltatory conduction, not summation.

Which of These Statements About the Action Potential Is Correct