The repolarization phase of action potentials in neurons is due primarily to A) increased activity of the Na⁺/K⁺pump. B) sodium flow out of the cell. C) sodium flow into the cell. D) potassium flow into the cell. E) potassium flow out of the cell.

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Quizplus · Accepted Answer

The repolarization phase of action potentials in neurons is primarily due to potassium ions (K+) flowing out of the cell. This movement of K+ out of the neuron helps to restore the negative internal charge of the cell, bringing the membrane potential back towards its resting state.

The Repolarization Phase of Action Potentials in Neurons Is Due