A drug would prevent an action potential if it:

Question

Quizplus · Accepted Answer

Action potentials are generated by the movement of sodium ions into the cell, followed by the movement of potassium ions out of the cell. Blocking the movement of sodium ions across the membrane would prevent the depolarization necessary for generating an action potential. Lowering the threshold of the membrane or increasing the movement of sodium ions would likely make it easier to generate an action potential, and blocking the movement of potassium ions would only affect the repolarization phase of the action potential.

A Drug Would Prevent an Action Potential If It