Chapter 7, Problem 35RA

Summary Introduction

To review:

The value of membrane potential at 0.5 msec (milliseconds) after the beginning of the action potential.

Introduction:

Membrane potential can be defined as the difference in electric potential between the interior and the exterior of a cell. It ranges from -40 mV (millivolts) to -80 mV. The action potential is produced by the rapid influx of sodium ions which is then followed by a slightly slower movement of potassium ions to the outside of the cell.