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Medical Term:

anterior commissure


a round bundle of nerve fibers that crosses the midline of the brain near the anterior limit of the third ventricle. It consists of a smaller anterior part (pars anterior commissurae anterioris [TA]), the fibers of which pass in part to the olfactory bulbs, and a larger posterior part (pars posterior commissurae anterioris [TA]), which interconnects the left and right temporal lobes.

Synonym(s): commissura anteriorTA

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