A node of Ranvier (myelin sheath gap)
A) is one segment of the myelin sheath.
B) occurs in the PNS but not in the CNS.
C) is a bare region of axonal membrane in myelinated axons only.
D) occurs only in ganglia.

Question

Quizplus · Accepted Answer

Nodes of Ranvier are gaps in the myelin sheath along myelinated axons, allowing for rapid signal transmission through saltatory conduction. They are present in both the PNS and CNS.

A Node of Ranvier (Myelin Sheath Gap)