A nucleus in the ventral part of the anterior horn of the sacral region of the spinal cord that is the origin of the pudendal nerve. [ http://en.wikipedia.org/wiki/Onuf%27s_nucleus http://en.wikipedia.org/wiki/Pudendal_nerve#Nucleus ]
Synonyms: pudendal neural nucleus Onuf's nucleus nucleus of Onuf
Term information
- neuronames:2701
- Wikipedia:Onuf%27s_nucleus
- FMA:77024
- FMA:257031
involved in the maintenance of micturition and defecatory continence, as well as muscular contraction during orgasm.
The neurons in Onuf's nucleus are motoneurons, and like most motoneurons they are characterized by their mulipolarity and large Nissl bodies
Term relations
- nucleus of spinal cord
- part of some sacral spinal cord ventral column
- part of some ventral horn of spinal cord