A neuron's refractory phase is defined as the
A) moment of depolarization.
B) moment when the action potential leaps to the next node of Ranvier.
C) brief period during and immediately after an action potential when a neuron cannot produce another action potential.
D) developmental period before a neuron has been myelinated.

Question

Quizplus · Accepted Answer

The refractory phase is the brief period during and immediately after an action potential when a neuron cannot produce another action potential. During this time, the voltage-gated sodium channels are inactive and unable to open, preventing the neuron from depolarizing and producing another action potential.

A Neuron's Refractory Phase Is Defined as the