释义 |
Onuf nucleus O·nuf nu·cle·us (ō'nūf), a group of small, somatic, motor neurons in the ventral horn of the spinal cord at sacral 2 level that innervate the vesicorectal sphincters, i.e., the external anal and the urethral sphincter; Onuf nucleus has been identified in the cat, dog, and human. Synonym(s): nucleus of pudendal nerve [TA] [Onufrowicz, Wladislaus, Swiss anatomist.] Onufrowicz, Wladislaus, Swiss anatomist, 1836-1900. Onuf nucleus - small somatic motor neurons in the ventral horn of the spinal cord at level S2. |