Onuf's nucleus

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On·uf's nucleus

A nucleus of small somatic motor neurons that are located in the ventral horn of the spinal cord at the level of the second sacral vertebra and innervate the vesicorectal sphincters.
References in periodicals archive ?
5] The drug inhibits the pre-synaptic reuptake of 5-HT and NE at Onuf's nucleus in the sacral spinal cord.
Light and electron microscopic and immunohistochemical observations of the Onuf's nucleus of amyotrophic lateral sclerosis.