- An artery that is one of two terminal branches of the internal carotid artery, divided into two parts and supplying the branches to the thalamus and corpus striatum and to the cortex of the medial parts of the frontal and parietal lobes.
- An artery that is one of two terminal branches of the internal carotid artery, divided into three parts and supplying the perforating branches to the internal capsule, thalamus, and corpus striatum, the insula and adjacent cortical areas, and a large part of the central cortical convexity.
- An artery that is formed by a bifurcation of the basilar artery and is divided into three parts supplying part of the thalamus and hypothalamus, the thalamus, cerebral peduncles, and choroid plexuses of the lateral and third ventricles, and the cortex of the temporal and occipital lobes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.