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communicating artery in Medicine

communicating artery

(kə-myōōnĭ-kā′tĭng)
n.
  1. An artery that connects two larger arteries.
  2. A short artery joining the two anterior cerebral arteries and completing anteriorly the circle of Willis; anterior communicating artery.
  3. An artery with origin in the internal carotid artery, with distribution to the optic tract, cerebral peduncle, and hippocampal gyrus; and with anastomoses with the posterior cerebral artery to form the circle of Willis; posterior communicating artery.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.