Action potentials only go in one direction,away from the cell body,because
A)the adjacent prior segment of axon is still at +40mV.
B) voltage-dependent gates are limited in the frequency with which they can open.
C) the adjacent prior segment is still in refractory period.
D) the action potential temporarily disables the sodium-potassium pumps.

Question

Action potentials only go in one direction,away from the cell body,because 
A)the adjacent prior segment of axon is still at +40mV. 
B) voltage-dependent gates are limited in the frequency with which they can open.​ 
C) the adjacent prior segment is still in refractory period.​ 
D) the action potential temporarily disables the sodium-potassium pumps.​

Quizplus · Accepted Answer

During the refractory period, the section of the axon that just fired an action potential cannot immediately respond to another stimulus. This ensures that the action potential only travels in one direction, away from the cell body, and prevents back-propagation of the signal.

Action Potentials Only Go in One Direction,away from the Cell