Answer
B
Work Step by Step
Accessory nerve or cranial nerve 12 is purely a motor nerve. It is responsible for head turning and shoulder shrugging. It supplies sternocleidomastoid and trapezius muscle.
Human Anatomy & Physiology (9th Edition)
by Marieb, Elaine N.; Hoehn, Katja N.
Published by
Pearson
ISBN 10:
0321743261
ISBN 13:
978-0-32174-326-8
Chapter 13 - The Peripheral Nervous System and Reflex Activity - Review Questions - Page 522: 8(3)
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