Yale- Cranial Nerve 4, pg. 7
Chapter contents
Overview
Origin, central course
Intracranial course
Final innervation
Clinical correlation
Unique features
Cranial Nerve IV - Trochlear Nerve
Page 7 of 7
Unique Features
The trochlear nerve has several features that make it unique from the other cranial nerves:
Is the only nerve to exit from the dorsal surface of the brain.
Is the only nerve in which all the lower motor neuron fibers decussate.
Has the longest intracranial course.
Has the smallest number of axons.