Essentials of Human Anatomy & Physiology (12th Edition)

Published by Pearson
ISBN 10: 1292216239
ISBN 13: 978-1-29221-623-2

Chapter 11 - The Cardiovascular System - Review Questions - Page 423: 53

Answer

Since the guards are standing the blood in their legs have to go against gravity to reach the heart. This reduces the blood pressure and the blood starts to collect in lower legs. Due to low blood pressure they might feel lightheaded or faint.

Work Step by Step

Same as above.
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