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When an Action Potential Begins, Depolarization of the Axon Membrane

Question 26

Multiple Choice

When an action potential begins, depolarization of the axon membrane is the result of the:

A) closing of voltage-gated channels.
B) release of Cl⁻ ions.
C) influx of Na⁺ ions.
D) influx of K⁺ ions.

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