Human Anatomy & Physiology (9th Edition)

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

Chapter 22 - The Respiratory System - Review Questions - Page 846: 6

Answer

D

Work Step by Step

The inspiratory muscles include external intercostal muscle and diaphragm. When external intercostal muscles contract, they pull the rib cage upwards and outwards, expanding the diameter of thorax in lateral and anteroposterior direction.
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