During an action potential, the axon's ion channels pop open to allow chlorine ions to rush into the axon.

Question

Quizplus · Accepted Answer

During an action potential, the axon's ion channels allow the flow of positively charged ions (such as sodium and potassium) across the membrane, not chlorine ions. Chlorine ions, if involved, would typically flow in the opposite direction, out of the axon, to restore the membrane potential after the action potential has passed.

During an Action Potential, the Axon's Ion Channels Pop Open