In a myelinated axon, action potentials are regenerated
A) at the terminal buttons.
B) all along the axon.
C) at gaps in the myelin known as nodes of Ranvier.
D) at the axon hillock.

Question

Quizplus · Accepted Answer

In a myelinated axon, action potentials are regenerated only at gaps in the myelin known as nodes of Ranvier. The myelin sheath acts as an insulator, preventing ion flow across the axonal membrane. However, at these nodes of Ranvier, ion channels are present and allow for the regeneration of the action potential.

In a Myelinated Axon, Action Potentials Are Regenerated