musculus sphincter urethrae externus urethrae masculinae
[TA] external sphincter muscle of male urethra: origin, ramus of pubis; insertion, median raphe behind and in front of urethra; innervation, perineal; action, compresses the membranous part of the urethra. Called also striated sphincter, external sphincter of male urethra, external urethral sphincter of male urethra, and m. sphincter urethrae membranaceae.
Medical dictionary.
2011.