Solitary Nucleus

**Definition:** GRAY MATTER located in the dorsomedial part of the MEDULLA OBLONGATA associated with the solitary tract. The solitary nucleus receives inputs from most organ systems including the terminations of the facial, glossopharyngeal, and vagus nerves. It is a major coordinator of AUTONOMIC NERVOUS SYSTEM regulation of cardiovascular, respiratory, gustatory, gastrointestinal, and chemoreceptive aspects of HOMEOSTASIS. The solitary nucleus is also notable for the large number of NEUROTRANSMITTERS which are found therein.

**Tree numbers:** - A08.186.211.132.810.591.500.750

**Synonyms:** - Nuclei Tractus Solitarii - Nucleus of the Solitary Tract - Nucleus Solitarius - Nucleus Tractus Solitarii - Solitary Nuclear Complex - Solitary Tract Nucleus - Nucleus of Solitary Tract - Nucleus of Tractus Solitarius