Essentials of Human Anatomy & Physiology (12th Edition)

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

Chapter 6 - The Muscular System - Review Questions - Page 249: 18

Answer

Since muscles can only contract, they need a rigid support of another static bone to provide movement. For this reason, every muscle is attached to at least two bones. They are called origin and insertion. The origin acts as support and does not move, whereas the insertion bone moves via muscle contraction and expansion.

Work Step by Step

Same as above.
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