Once an action potential has been fired, the neuron cannot fire again until:
A) the resting state has been restored.
B) the rising phase of the action potential has reached its peak.
C) the reuptake of neurotransmitters has been completed.
D) the direction of the nerve impulse within the axon has reversed.

Question

Quizplus · Accepted Answer

The neuron must return to its resting state before it can fire another action potential. This involves the restoration of the original ion concentration gradient across the neuron's membrane, primarily through the action of the sodium-potassium pump.

Once an Action Potential Has Been Fired, the Neuron Cannot