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posterior perforated substance

posterior perforated substance in Medicine

posterior perforated substance n.
The bottom of the interpeduncular fossa at the base of the mesencephalon, containing openings for the passage of perforating branches of cerebral arteries.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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