The depolarization of a myelinated neuron occurs
A) along the entire length of the cell membrane
B) in the myelinated regions only
C) along the dendrites only
D) only at the nodes of Ranvier
E) along the entire length of the neurilemma

Question

Quizplus · Accepted Answer

In myelinated neurons, the depolarization occurs only at the nodes of Ranvier where there is a gap in the myelin sheath. This allows for saltatory conduction, where the action potential jumps from one node to the next, speeding up conduction along the axon.

The Depolarization of a Myelinated Neuron Occurs