The action potential is generated when an excitatory stimulus
A)opens sodium channels.
B)opens voltage-gated potassium channels.
C)causes the interior of the cell to become more negative.
D)blocks the entry of sodium into the cell.

Question

Quizplus · Accepted Answer

An excitatory stimulus causes the opening of sodium channels, allowing sodium ions to flow into the cell and depolarize it, leading to the generation of an action potential. The other options (B, C, and D) do not accurately describe the initial step of action potential generation.

The Action Potential Is Generated When an Excitatory Stimulus