The term tuberal nucleus refers to one of twenty six regions, zones, and nuclei that constitute the motor lateral hypothalamus. It is a composite of four cell groups at the base of the lateral hypothalamic area and at the level of the intermediate hypothalamic region in the rat ( Swanson-1998 ) and the mouse ( Hof-2000 ). Defined on the basis of multiple criteria, the four parts are the subventromedial part of the tuberal nucleus, the intermediate part of the tuberal nucleus, the terete hypothalamic nucleus, and the lateral tuberal nucleus. Functionally the tuberal nucleus and motor lateral hypothalamus belong to the subcortical motor system ( Swanson-2004 ).