Medical Dictionary

communicating artery


Medical Definition of communicating artery

  1. :  any of three arteries in the brain that form parts of the circle of Willis:a:  one connecting the anterior cerebral arteries—called also anterior communicating arteryb:  either of two arteries that occur one on each side of the circle of Willis and connect an internal carotid artery with a posterior cerebral artery—called also posterior communicating artery

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to cast off or become cast off

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