Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 10 - Section 10.4 - Muscles Acting on the Shoulder and Upper Limb - Before You Go On - Page 355: 19

Answer

Elbow flexion is the result of the combined action of the brachialis, the biceps brachii, and the brachioradialis. However, the prime mover of this action is the brachialis.

Work Step by Step

The prime mover (PM) of elbow extension is the triceps brachii.
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