Na+ and K+ channels on axons are mainly:
A) neurotransmitter dependent.
B) voltage dependent.
C) calcium dependent.
D) both neurotransmitter and voltage dependent.

Question

Quizplus · Accepted Answer

Na+ and K+ channels on axons are primarily voltage-dependent. This means that they open or close in response to changes in the electric potential across the membrane. The channels are not primarily dependent on neurotransmitters or calcium. While neurotransmitters can modulate the activity of these channels, they do not directly control them, and calcium plays a secondary role in regulating their activity.

Na+ and K+ Channels on Axons Are Mainly