Human Anatomy & Physiology (9th Edition)

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

Chapter 19 - The Cardiovascular System: Blood Vessels - Review Questions - Page 749: 4


(c) damage to the venous valves,

Work Step by Step

If the venous valves are damaged blood won't be able to go through the damaged valve to get to the heart. Think of the valve as a door in this case the door is stuck so blood cannot get to the heart.
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