part of part of in lateral side of connecting branch of vessel supplies blood to basilar artery posterior cerebral artery SCTID:181313007 MESH:D020769 EMAPA:17861 EHDAA2:0000659 MA:0002022 GAID:488 Wikipedia:Posterior_cerebral_artery The posterior cerebral artery (PCA) is one of a pair of blood vessels that supplies oxygenated blood to the posterior aspect of the brain in human anatomy]. It arises near the intersection of the posterior communicating artery and the basilar artery and connects with the ipsilateral middle cerebral artery (MCA) and internal carotid artery via the posterior communicating artery (PCommA). [WP,unvetted]. NCIT:C12831 UBERON:0001636 FMA:50583 occipital lobe head blood vessel cerebral artery lateral structure branch of basilar artery