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Dissectible Me 5 minute anatomy

Trochlear nerve (CN IV) palsy

May 1 · 6 min · Episode 199 · 12.1 MB
0:00-6:20

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The trochlear nerve (CN IV) has the single task of innervating the superior oblique muscle. Unfortunately the actions of this muscle on the eye are a little awkward to understand, so how is the eye affected if the trochlear nerve is injured?