The anterior choroidal artery is an important blood vessel located in the base of the brain. It arises from the posterior side of the internal carotid artery, but in some individuals, it springs from the first portion of the middle cerebral artery. Then it runs laterally and backwards along the cerebral peduncle and approaches the antero-inferior parts of the temporal lobe. There, the anterior choroidal artery enters the brain grey matter, giving rise to several branches on the wall of the anterior horn of the lateral ventricle; these are components of the choroidal plexus of the lateral ventricle.
The anterior choroidal artery supplies important structures in the diancephalon and mesencephalon, such as the lateral geniculate body, the internal capsule, choroid plexus, optic chiasma, substantia nigra, and hippocampus.
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| Above, inferior view of human brain, showing the circle of Willis, the internal carotid, middle cerebral, and anterior choroidal artery. |