CRANIAL NERVE IV: TROCHLEAR NERVE
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2.12.06
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You are here: Home » Anatomy Notes » CRANIAL NERVE IV: TROCHLEAR NERVE
PATHWAY IN BRAIN:
- It is the only cranial nerve that originates from the opposite of the brain.
- It is the only cranial nerve that exits from the dorsal side of the cranium, so it has a very long path.
- It is the only cranial nerve associated with the eye, that doesn't enter the orbit through a tendinous ring.
CAVERNOUS SINUS: It runs in the cavernous sinus. If there is ever brain hemorrhage, pressure from excess CSF can damage the Abducens nerve.
INJURY: Injury to the Trochlear Nerve or Superior Oblique Muscle will cause someone to tilt their head slightly in compensation.
Tags: cranial nerve, trochlear, muscle
Category: Anatomy Notes
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