Which of these statements describes the action potential
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 if the threshold is not met, no action potential will be produced, but if it is met, the action potential will occur at its full strength.

B and D are incorrect as the action potential does have a refractory period, and it does not speed transmission by any type of summation.

C is partially correct, as the action potential is triggered by depolarization to threshold, not repolarization.

Which of These Statements Describes the Action Potential