Habenula

**Definition:** A small protuberance at the dorsal, posterior corner of the wall of the THIRD VENTRICLE, adjacent to the dorsal THALAMUS and PINEAL BODY. It contains the habenular nuclei and is a major part of the epithalamus.

**Tree numbers:** - A08.186.211.180.200.360 - A08.186.211.200.317.200.360

**Synonyms:** - Habenula Complex - Nucleus Habenularis