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oculomotor nucleus in Medicine

oculomotor nucleus

n.
  1. The group of motor neurons that innervate the external eye muscles except the lateral rectus and the superior oblique muscles and lie in the midbrain near the midline in the most ventral part of the central gray substance.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.