When a neuron depolarizes and begins an action potential, sodium ions move into the axon and then potassium ions move out of the axon.

Question

Quizplus · Accepted Answer

Depolarization of a neuron results in the opening of voltage-gated sodium channels, allowing sodium ions to rush into the axon and causing further depolarization. This leads to the generation of an action potential. As the axon potential reaches its peak, voltage-gated potassium channels open, allowing potassium ions to move out of the axon and repolarize the membrane.

When a Neuron Depolarizes and Begins an Action Potential, Sodium