Tuber cinereum
Tuber cinereum
Definition
The tuber cinereum is a protrusion of the hypothalamic region located between the mammillary body and the optic chiasma. It forms part of the floor of the third ventricle and continues downward as the infundibulum, which connects the pituitary gland to the hypothalamus.
It includes several subdivisions: a rostral part, a parainfundibular part, and a caudal part, separated by the tuberoinfundibular sulcus.
The tuber cinereum is narrow and small in equids, significantly wider in ruminants and carnivores, and even more voluminous in humans.
References
Barone R, Bortolami R. Anatomie comparée des mammifères domestiques, Tome 6, Neurologie I, Vigot, Paris, 2004.
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.
