Which of the following is NOT true of action potentials?
A) Repolarization of the axon is immediate.
B) Sodium ions rush into the cell leading to depolarization.
C) Action potentials travel in both directions along the axon.
D) Action potentials begin at the axon hillock.

Question

Quizplus · Accepted Answer

Action potentials typically travel in one direction along the axon, from the axon hillock towards the axon terminals, not in both directions. This directional movement is due to the refractory period that follows an action potential, preventing the backward propagation of the signal.

Which of the Following Is NOT True of Action Potentials