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medial longitudinal fasciculus

medial longitudinal fasciculus definition - medical

medial longitudinal fasciculus

noun
A longitudinal bundle of fibers extending from the upper border of the mesencephalon into the cervical segments of the spinal cord, composed largely of fibers from the vestibular nuclei ascending to the motor neurons innervating the external eye muscles, and descending to spinal cord segments innervating the musculature of the neck.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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