Anterior communicating artery
- Anterior communicating artery
Infobox Artery
Name = Anterior communicating artery
Latin = arteria communicans anterior
GraySubject = 146
GrayPage = 572
Caption = The cerebral arterial circle and arteries of the brain. The anterior communicating arteries (top of figure) connect the left and right anterior cerebral arteries.
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In human anatomy, the anterior communicating artery is a blood vessel of the brain that connects the left and right anterior cerebral arteries.
The anterior communicating artery connects the two anterior cerebral arteries across the commencement of the longitudinal fissure. Sometimes this vessel is wanting, the two arteries joining together to form a single trunk, which afterward divides; or it may be wholly, or partially, divided into two. Its length averages about 4 mm, but varies greatly. It gives off some of the anteromedial ganglionic vessels, but these are principally derived from the anterior cerebral artery.
It is part of the cerebral arterial circle, also known as the circle of Willis.
Pathology
Aneurysms of the anterior communicating artery are the most common circle of Willis aneurysm [Beck J, Rohde S, Berkefeld J, Seifert V, Raabe A. Size and location of ruptured and unruptured intracranial aneurysms measured by 3-dimensional rotational angiography. Surg Neurol. 2006 Jan;65(1):18-25; discussion 25-7. PMID 16378842.] and can cause visual field defects such as bitemporal hemianopsia, [Aoki N. Partially thrombosed aneurysm presenting as the sudden onset of bitemporal hemianopsia. Neurosurgery. 1988 Mar;22(3):564-6. PMID 3362325.] psychopathology and frontal lobe pathology. [Johnson MK, O'Connor M, Cantor J. Confabulation, memory deficits, and frontal dysfunction. Brain Cogn. 1997 Jul;34(2):189-206. PMID 9220085.]
References
External links
*LoyolaMedEd|Neuro/neurovasc/navigation/aca.htm
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Look at other dictionaries:
anterior communicating artery — n COMMUNICATING ARTERY (a) … Medical dictionary
Anterior cerebral artery — Infobox Artery Name = Anterior cerebral artery Latin = arteria cerebri anterior GraySubject = 146 GrayPage = 571 Width = 335 Caption = Outer surface of cerebral hemisphere, showing areas supplied by cerebral arteries. (Blue is region supplied by… … Wikipedia
communicating artery — n 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 artery b) either of two arteries that occur one on each side of the circle of Willis … Medical dictionary
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Posterior communicating artery — Infobox Artery Name = Posterior communicating artery Latin = arteria cerebri communicans posterior GraySubject = 146 GrayPage = 573 Caption = Schematic representation of the arterial circle and arteries of the brain. The posterior communicating… … Wikipedia
segments of anterior cerebral artery — the segments into which the anterior cerebral artery is divided; in anatomical terminology segments A1 (precommunicating part) and A2 (postcommunicating part) are recognized. In clinical terminology, the artery is described as comprising five… … Medical dictionary
communicating artery — noun any of three arteries in the brain that make up the circle of Willis • Syn: ↑arteria communicans • Hypernyms: ↑artery, ↑arteria, ↑arterial blood vessel • Part Holonyms: ↑brain, ↑encep … Useful english dictionary
communicating artery anterior — arteria communicans anterior … Medical dictionary
Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… … Medical dictionary
