Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 9 - Section 9.2 - The Mouth, Pharynx, and Esophagus - Check Your Progress - Page 173: 3

Answer

To prevent food from entering the nose or trachea when swallowing, the soft palate moves back to close off the nasal passages. In addition, the trachea moves up under the epiglottis to cover the glottis (opening to the larynx).

Work Step by Step

To prevent food from entering the nose or trachea when swallowing, the soft palate moves back to close off the nasal passages. In addition, the trachea moves up under the epiglottis to cover the glottis (opening to the larynx).
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