Why do action potentials only travel down the axon and not the other direction?
A) An area where an action potential just occurred is still in a refractory period.
B) Resting potentials change with direction of the nerve impulse.
C) Sodium-potassium pumps only act in one direction.
D) Actions potential do not cause depolarization.

Question

Quizplus · Accepted Answer

After an action potential occurs, the membrane undergoes a refractory period during which it cannot be re-stimulated to produce another action potential. This prevents the signal from traveling back in the opposite direction along the axon.

Why Do Action Potentials Only Travel Down the Axon and Not