Which of the following statements about action potentials is correct?
A) Action potentials for a given neuron vary in magnitude.
B) Action potentials for a given neuron vary in duration.
C) Action potentials propagate towards the synaptic terminal of an axon.
D) Movement of ions during the action potential occurs mostly through the sodium pump.

Question

Quizplus · Accepted Answer

Action potentials propagate along the axon towards the synaptic terminal, where they trigger the release of neurotransmitters. The magnitude and duration of action potentials for a given neuron are generally consistent, and the movement of ions during an action potential occurs primarily through voltage-gated ion channels, not the sodium pump.

Which of the Following Statements About Action Potentials Is Correct