Answer
The trochlear nerve (CN 1V) is the smallest cranial nerve.
Work Step by Step
It innervates two extrinsic muscles that control eyeball movements.
Principles of Anatomy and Physiology 14e with Atlas of the Skeleton Set (14th Edition)
by Tortora, Gerard J.
Published by
Wiley
ISBN 10:
1-11877-456-6
ISBN 13:
978-1-11877-456-4
Chapter 14 - The Brain and Cranial Nerves - Figure 14.19 - Page 505: 2
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