Chapter 19, Problem 15RQ

Summary Introduction

To review:

The names of the elements involved in the heart’s conducting system starting with the pacemaker.

The presence or absence of nerves in the conducting system.

The functions of the conducting system.

Introduction:

An electrical impulse is generated and conducted by cardiac muscle cells, which are stimulated to contract in a rhythmic manner. These cardiac cells transmit impulse all around the heart muscle to start the contraction of the heart chamber in a sequential manner.