Anterior cerebral artery
2004354
211801356
2008-05-12T04:20:56Z
131.217.6.8
/* Areas supplied */
{{Infobox Artery
| Name = Anterior cerebral artery
| Latin = arteria cerebri anterior
| GraySubject = 146
| GrayPage = 571
| Width = 335
| Image = Gray517.png
| Caption = Outer surface of cerebral hemisphere, showing areas supplied by cerebral arteries. (Blue is region supplied by anterior cerebral artery.)
| Image2 = Circle of Willis en.svg
| Caption2= The [[circle of Willis|arterial circle]] and arteries of the brain. The '''anterior cerebral arteries''' (top of figure) arise from the trifurcations of the [[internal carotid artery|internal carotid arteries]] into the '''anterior cerebral artery''', [[middle cerebral artery]] and [[posterior communicating artery]] on each side.
| BranchFrom = [[internal carotid artery]]
| BranchTo =
| Vein = [[cerebral veins]]
| Supplies = [[cerebrum]]
| MeshName = Anterior+Cerebral+Artery
| MeshNumber = A07.231.114.228.100
}}
In [[human anatomy]], each '''anterior cerebral artery''' supplies [[oxygen]] to most medial portions of [[frontal lobe]]s and [[superior medial parietal]] lobes. The 2 anterior cerebral arteries arise from the [[internal carotid artery]] and are part of the [[Circle of Willis]].
The left and right anterior cerebral arteries are connected by the [[anterior communicating artery]].
==Areas supplied==
Areas supplied by the anterior cerebral artery include:{{Fact|date=February 2007}}
# The medial surface of the [[frontal lobe|frontal lobe]] by the medial orbito-frontal artery, and [[parietal lobe|parietal]] lobes
# The anterior four- fifths of the [[corpus callosum]]
# Approximately 1 inch of the frontal and parietal cortex
# Anterior portions of the [[basal ganglia]] and [[internal capsule]]
# Olfactory bulb and tract
==Occlusion==
Occlusion of the anterior cerebral artery may result in the following defects:{{Fact|date=February 2007}}
# If stroke occurs prior to the anterior communicating artery it is usually well tolerated secondary to collateral circulation
# [[Paralysis]] of the [[contralateral]] [[foot]] and [[leg]]
# [[Sensory loss]] in the contralateral foot and leg
# Left sided strokes may develop transcortical motor aphasia
# Gait apraxia
# [[Urinary incontinence]] which usually occurs with [[bilateral]] damage in the acute phase
==Additional images==
{| class=wikitable align=left width=190px
|-
|[[Image:Cerebral Cortex location.jpg|120x120px]]
|Location of cerebral cortex
|}[[Image:Arteries_beneath_brain_Gray_closer.jpg|thumb|right|335px|The arteries of the base of the brain. Anterior cerebral artery near top. The [[temporal lobe|temporal]] pole of the [[cerebrum]] and a portion of the [[cerebellum|cerebellar]] hemisphere have been removed on the right side. Inferior aspect (viewed from below).]]
<gallery>
Image:Gray474.png|Diagram showing origins of the main branches of the carotid arteries.
</gallery>
<gallery>
Image:Gray518.png|Medial surface of cerebral hemisphere, showing areas supplied by cerebral arteries.
</gallery>
==External links==
*{{LoyolaMedEd|Neuro/neurovasc/navigation/aca.htm}}
* {{SUNYAnatomyLabs|28|09|02|18}}
* {{UMichAtlas|n3a8p1}}
* {{RocheLexicon|13048.000-1}}
* {{RocheLexicon|13048.000-3}}
* [http://www.neuropat.dote.hu/table/erell.htm Blood supply at neuropat.dote.hu]
{{Arteries of head and neck}}
[[Category:Arteries]]
[[Category:Head and neck]]
{{circulatory-stub}}
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