muscular layer of the intermediate part of male urethra

longitudinal layer of muscular layer of the intermediate part of male urethra

the inner layer of smooth muscle fibers in the muscularis of the intermediate or membranous part of the male urethra, to be distinguished from circular fibers of the adjacent external urethral sphincter. Synonym(s): stratum longitudinale tunicae muscularis partis intermediae urethrae masculinae [TA]