posterior communicating artery


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pos·te·ri·or com·mu·ni·cat·ing ar·ter·y

[TA]
origin, internal carotid; distribution, optic tract, crus cerebri, interpeduncular region, and hippocampal gyrus; anastomoses, with posterior cerebral to form a portion of the cerebral arterial circle (circle of Willis).

pos·te·ri·or com·mu·ni·cat·ing ar·te·ry

(pos-tēr'ē-ŏr kŏ-myū'ni-kā'ting ahr'tĕr-ē) [TA]
Origin, internal carotid; distribution, optic tract, crus cerebri, interpeduncular region, and hippocampal gyrus; anastomoses with posterior cerebral to form the cerebral arterial circle (circle of Willis).
Synonym(s): arteria communicans posterior.

posterior communicating artery

An artery interconnecting the posterior cerebral and middle cerebral arteries at the base of the brain.
See: brain (Major arteries of the brain) and circle of Willis for illus.
See also: artery
References in periodicals archive ?
More than 80% of the aneurysms were located on an anterior circulation artery, and of these, 48% were on the internal carotid artery and 33% were on the posterior communicating artery.
One patient had been referred to us from another unit where an attempt to clip a posterior communicating artery aneurysm had failed as the neck was heavily calcified.

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