Anterior Commissure of Brain

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 24, 2015

The anterior commissure of the brain is a bundle of myelinated (insulated) nerve fibers that are located within the upper portion of the lamina terminalis and overly the preoptic area, thereby helping to form the front wall of the third ventricle. When sectioned lengthwise, it is oval with the long diameter of the oval turned vertically.

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