Cardiopulmonary Anatomy & Physiology
Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 12, Problem 2RQ
Summary Introduction

Introduction:

The contraction of the heart is based on the generation and propagation of the action potential. It can be defined as the electric current that travels across the cell membranes. When the heart is in a relaxed state, it is referred to as a resting state or polarized state. This period is marked by the electrical difference across the membrane. This difference is referred to as the resting membrane potential.

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