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・ Posterior auricular
・ Posterior auricular artery
・ Posterior auricular ligament
・ Posterior auricular muscle
・ Posterior auricular nerve
・ Posterior auricular vein
・ Posterior branch of coccygeal nerve
・ Posterior branch of obturator nerve
・ Posterior branches of cervical nerves
・ Posterior branches of sacral nerves
・ Posterior branches of the lumbar nerves
・ Posterior branches of thoracic nerves
・ Posterior cardinal vein
・ Posterior carpometacarpal ligament
・ Posterior cecal artery
Posterior cerebral artery
・ Posterior cerebral artery syndrome
・ Posterior chain
・ Posterior chamber of eyeball
・ Posterior cingulate
・ Posterior circulation infarct
・ Posterior clinoid processes
・ Posterior colliculus
・ Posterior column
・ Posterior column–medial lemniscus pathway
・ Posterior commissure
・ Posterior commissure of labia majora
・ Posterior communicating artery
・ Posterior compartment
・ Posterior compartment of leg


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Posterior cerebral artery : ウィキペディア英語版
Posterior cerebral artery

The posterior cerebral artery (PCA) is one of a pair of blood vessels that supply oxygenated blood to the posterior aspect of the brain (occipital lobe) 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).
==Origin==
The development of the PCA in fetal brain comes relatively late and arises from the fusion of several embryonic vessels near the caudal end of the PCommA supplying the mesencephalon and diencephalon of the fetus. The PCA begins as such, as a continuation of the PCommA in the fetus with only 10–30% of fetuses having a prominent basilar origin.
The fetal carotid origin of the PCA usually regresses as the vertebral and basilar arteries develop with the PCommA reducing is size. In most adults, the PCA sources from the anterior portion of the basilar artery. Only about 19% of adults retain PCommA dominance of the PCA with 72% having dominant basilar origin, and the rest being equal prominence or exclusive sources for suppyling the PCA.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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