Function
Onuf’s nucleus is the origin of innervation for the striated muscles of the rectum and urethral sphincter. The neurons of Onuf’s nucleus are responsible for controlling external sphincter muscles of the anus and urethra in humans. Onufrowicz also proposed that Onuf’s nucleus controlled the ischiocavernosus and bulbocavernosus muscles which function in penile erection and ejaculation in males. The dorsomedial subnucleus innervates the rectal striated sphincter and the ventrolateral subgroup connects to the urethral striated sphincter.
Read more about this topic: Onuf's Nucleus
Famous quotes containing the word function:
“It is the function of vice to keep virtue within reasonable bounds.”
—Samuel Butler (1835–1902)
“Think of the tools in a tool-box: there is a hammer, pliers, a saw, a screwdriver, a rule, a glue-pot, nails and screws.—The function of words are as diverse as the functions of these objects.”
—Ludwig Wittgenstein (1889–1951)
“Literature does not exist in a vacuum. Writers as such have a definite social function exactly proportional to their ability as writers. This is their main use.”
—Ezra Pound (1885–1972)