Question

The primary reason why neurons are refractory for a short period after firing action potentials, and the reason underlying the absolute refractory period, is that the

a.voltage-gated sodium channels are inactivated.

b. voltage-gated potassium channels are inactivated.

c.sodiumpotassium pump has to remove sodium ions from inside the cell.

d. sodiumpotassium pump has to retrieve potassium ions from outside the cell.

Answer

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