Posterior cerebral artery 3042638 210770063 2008-05-07T09:43:23Z Thijs!bot 1392310 robot Adding: [[nds:Arteria cerebri posterior]] {{Infobox Artery | Name = {{PAGENAME}} | Latin = arteria cerebri posterior | GraySubject = 148 | GrayPage = 580 | Width = 335 | Image = Gray517.png | Caption = Outer surface of cerebral hemisphere, showing areas supplied by cerebral arteries. (Yellow is region supplied by posterior cerebral artery.) | Image2 = Circle of Willis en.svg | Caption2= The [[circle of Willis|arterial circle]] and arteries of the brain. The '''posterior cerebral arteries''' (''bottom forks'') arise from the [[basilar artery]] (''center''). | BranchFrom = [[basilar artery]] | BranchTo = | Vein = [[cerebral veins]] | Supplies = [[occipital lobe]] of [[cerebrum]] | MeshName = Posterior+Cerebral+Artery | MeshNumber = A07.231.114.228.700 | DorlandsPre = a_61 | DorlandsSuf = 12153821 }} In [[human anatomy]], the '''posterior cerebral artery''' is the [[blood vessel]] that supplies oxygenated [[blood]] to the posterior aspect of the brain ([[occipital lobe]]). It arises from the [[basilar artery]] and connects with the ipsilateral [[middle cerebral artery]] and [[internal carotid artery]] via the [[posterior communicating artery]]. ==Branches== The branches of the posterior cerebral artery are divided into two sets, ganglionic and cortical: ===Ganglionic branches=== * The ''postero-medial ganglionic branches'' are a group of small arteries which arise at the commencement of the posterior cerebral artery: these, with similar branches from the [[posterior communicating]], pierce the posterior perforated substance, and supply the medial surfaces of the [[thalami]] and the walls of the [[third ventricle]]. * The ''posterior choroidal branches'' run forward beneath the [[splenium]] of the [[corpus callosum]], and supply the [[tela chorioidea of the third ventricle]] and the [[choroid plexus]]. * The ''postero-lateral ganglionic branches'' are small arteries which arise from the posterior cerebral artery after it has turned around the [[cerebral peduncle]]; they supply a considerable portion of the thalamus. ===Cortical branches=== The cortical branches are: * the ''[[anterior temporal]]'', distributed to the [[uncus]] and the anterior part of the [[fusiform gyrus]] * the ''[[posterior temporal]]'', to the fusiform and the [[inferior temporal]] gyri * the ''[[calcarine]]'', to the [[cuneus]] and [[gyrus lingualis]] and the back part of the convex surface of the [[occipital lobe]] * the ''[[parietoöccipital]]'', to the [[cuneus]] and the [[precuneus]] ==Occlusion== *Contralateral loss of pain and temperature sensations. *Visual field defects (contralateral hemianopia with macular sparing). *[[Prosopagnosia]] with bilateral obstruction of the lingual and fusiform gyri. *Medial Midbrain Syndrome (Weber syndrome) *Ipsilateral deficits of Cranial Nerves V, VIII, IX, X, & XI *Horners Syndrome ==See also== *[[Circle of Willis]] *[[Anterior cerebral artery]] ==Additional images== [[Image:Arteries_beneath_brain_Gray_closer.jpg|thumb|right|335px|The arteries of the base of the brain. Posterior cerebral artery labeled near center. 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:Cerebral Cortex location.jpg|Location of cerebral cortex </gallery> <gallery> Image:Gray518.png|Medial surface of cerebral hemisphere, showing areas supplied by cerebral arteries. </gallery> ==External links== * {{eMedicine|neuro|322}} - Posterior Cerebral Artery Stroke * {{UMichAtlas|n3a8p1}} * {{SUNYAnatomyLabs|28|09|02|06}} * {{RocheLexicon|13048.000-1}} * [http://www.strokecenter.org/education/ais_vessels/ais049c.html Overview] at strokecenter.org * [http://www.upstate.edu/neurosurgery/resources/med_students/angio/ Angiography] at [[State University of New York Upstate Medical University]] * [http://www.psyweb.com/Brain/pca.jsp Diagram] at psyweb.com * [http://www.neuropat.dote.hu/table/erell.htm Blood supply] at neuropat.dote.hu {{circulatory-stub}} {{Arteries of head and neck}} [[Category:Arteries]] [[Category:Head and neck]] [[de:Arteria cerebri posterior]] [[la:Arteria cerebri posterior]] [[nds:Arteria cerebri posterior]]