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.

Nearby words

  1. posterior median fissure,
  2. posterior median line,
  3. posterior median sulcus,
  4. posterior nasal spine,
  5. posterior palatine foramen,
  6. posterior pituitary,
  7. posterior probability,
  8. posterior pyramid of medulla,
  9. posterior rhinoscopy,
  10. posterior root


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