Paired artery originating from the bifurcation of the basilar artery. It runs around the cerebral peduncle to reach the posterior and medial surface of the hemisphere, supplying the occipital lobe and a major portion of the temporal lobe of the cerebrum. It runs around the cerebral peduncle to reach the posterior and medial surface of the hemisphere.
Small branches supply part of the thalamus and hypothalamus.
Posterolateral central arteries , supplying the posterior region of the thalamus, the quadrigeminal plate, the pineal body and the medial geniculate body. Posteromedial and posterolateral choroid branches , supplying the choroid plexus of the third ventricle. Thalamic branches , supplying the posterior region of the thalamus.