proper fasciculus

prop·er fasciculus

(prŏp′ər)
n.
Any of several ascending and descending association fiber systems of the spinal cord that lie deep in the funiculi adjacent to the gray matter. Also called ground bundle.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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