An action potential can always be initiated specifically at which of the following locations associated with a neuron?
A)ion channels
B)synaptic boutons
C)nodes of Ranvier
D)both choices A and B
E)none of the above

Question

Quizplus · Accepted Answer

Action potentials can only be initiated at the nodes of Ranvier, where the axon membrane is exposed and voltage-gated ion channels are abundant. The other options (ion channels and synaptic boutons) may contribute to the overall function of the neuron, but they cannot specifically initiate an action potential.

An Action Potential Can Always Be Initiated Specifically at Which