Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 18 - The Cardiovascular System: The Heart - Review Questions: 3

Answer

b) movement of the excitation wave across the heart

Work Step by Step

An electrocardiogram shows a record of the electrical currents that are created and move the heart, which is the result of excited cells.
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