Essentials of Human Anatomy & Physiology (12th Edition)

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

Chapter 7 - The Nervous System - Review Questions - Page 302: 26

Answer

There are 12 pairs of cranial nerves. Among those, the purely sensory nerves are the olfactory (1st) cranial nerve, optic (2nd) cranial nerve, vestibulocochlear (8th) cranial nerve. Trigeminal (5th) cranial nerve activates the chewing muscle. Activity of the digestive tract and heart rate are regulated by vagus (10th) cranial nerve.

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