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Medical Term:

anterior perforated substance


a region at the base of the brain through which numerous small branches of the anterior and middle cerebral arteries (lenticulostriate arteries) enter the depth of the cerebral hemisphere; it is bordered medially by the optic chiasm and anterior half of the optic tract rostrally and laterally by the lateral olfactory stria; its anteromedial part corresponds to the olfactory tubercle.

Synonym(s): substantia perforata anteriorTA, locus perforatus anticus, olfactory area, substantia perforata rostralis

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.