The Action Potential Is Best Defined As

Multiple Choice

The action potential is best defined as:

A) the amount of serotonin that can cross the axon's membrane.
B) the +3- to +7-volt capacity of a typical motor neuron.
C) the ability of a motor neuron to either contract or relax a muscle group.
D) a brief electrical impulse that transmits information along the axon of a neuron.