Posterior communicating artery
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| Artery: Posterior communicating artery | |
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| Schematic representation of the arterial circle and arteries of the brain. The posterior communicating arteries (middle of figure) connect the internal carotid arteries' trifurcations and the posterior cerebral arteries. | |
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| The brain and the arteries of the base of the brain. The temporal pole of the cerebrum and a portion of the cerebellar hemisphere have been removed on the right side. Inferior aspect (viewed from below). | |
| Gray's | subject #146 573 |
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Overview
In human anatomy, the posterior communicating artery is a one of a pair of right-sided and left-sided blood vessels in the circle of Willis. It connects the three cerebral arteries of the same side. Anteriorly, it is one portion of the terminal trifurcation of the internal carotid artery. The anterior cerebral artery and the middle cerebral artery are the other two branches of the trifurcation. Posteriorly, it communicates with the posterior cerebral artery.
Pathology
Aneurysms of the posterior communicating artery are the second most common circle of Willis aneurysm[1] (the most common are anterior communicating artery aneurysms) and can lead to oculomotor nerve palsy.[1]
References
External links
- MedEd at Loyola Neuro/neurovasc/navigation/pcom.htm
- SUNY Labs 28:09-0209
- Roche Lexicon - illustrated navigator, at Elsevier 13048.000-1
- Roche Lexicon - illustrated navigator, at Elsevier 13048.000-3
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
