Where are voltage-gated Na⁺ channels concentrated?
A)spaced uniformly along the axon membrane
B)clustered at the nodes of Ranvier
C)clustered at the axon terminus
D)embedded within the myelin sheath

Question

Quizplus · Accepted Answer

Voltage-gated Na⁺ channels are concentrated at the nodes of Ranvier, which are the gaps in the myelin sheath covering the axon. This clustering helps to speed up the propagation of action potentials down the axon.

Where Are Voltage-Gated Na⁺ Channels Concentrated