intermediolateral nucleus

[ĭn′tər-mē′dē-ō-lătər-əl]
n.
  1. The cell column that forms the lateral horn of the gray matter of the spinal cord, extending from the first thoracic through the second lumbar segment, and containing the autonomic motor neurons that give rise to the preganglionic fibers of the sympathetic system.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.