BIO NMDCAT Neurons

nmdcat.online July 7, 2026

The opening of voltage-gated potassium channels during an action potential directly results in

A. Depolarization of the membrane

B. Rapid influx of potassium ions

C. Repolarization of the membrane

✓

D. Release of neurotransmitters

📝 Explanation

Following peak depolarization, voltage-gated K⁺ channels open and K⁺ rushes out of the cell down its electrochemical gradient, restoring the negative internal charge during repolarization.

📖 Additional Information

Depolarization of the membrane
Rapid influx of potassium ions
Repolarization of the membrane
Release of neurotransmitters

Following peak depolarization, voltage-gated K⁺ channels open and K⁺ rushes out of the cell down its electrochemical gradient, restoring the negative internal charge during repolarization.

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