Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 33, Circulatory and Respiratory Systems - Standardized Test Prep - Page 975: 8



Work Step by Step

Option C is correct. The structure labeled "3" on the diagram is the larynx, which is also called the voice box. It lies between the pharynx and the trachea. The larynx contains two elastic strips of tissue called the vocal cords.
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