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The nucleus of the trochlear nerve is located in the midbrain, at the level of the inferior colliculus. It is a motor nucleus, so located near the midline.
Additional recommended knowledge
Oddly, fibers from the trochlear nucleus cross over in the midbrain at the superior medullary velum and exit posteriorly, (this is the only cranial nerve to do so). The nerve then goes around the midbrain, and is visible coming out the sides.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Trochlear_nucleus". A list of authors is available in Wikipedia.|