Action potentials originate at the
A) terminal buttons.
B) synapses.
C) axon, adjacent to the axon hillock.
D) node of Ranvier.
E) nucleus.

Question

Quizplus · Accepted Answer

Action potentials originate at the axon hillock, which is located adjacent to the axon. This is where the threshold for firing an action potential is reached, due to the accumulation of depolarization from incoming signals via synaptic inputs.

Action Potentials Originate at the