Immediately after an action potential passes along an axon, it is not possible to generate a second action potential; thus, we state that the membrane is briefly
A) hyperexcitable.
B) refractory.
C) fully depolarized.
D) above threshold.
E) at the equilibrium potential.

Question

Quizplus · Accepted Answer

During the refractory period, the membrane potential is temporarily unable to generate another action potential. This is due to the inactivation of sodium channels and the activation of potassium channels following depolarization during the previous action potential.

Immediately After an Action Potential Passes Along an Axon, It