THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The male external urethral sphincter, sometimes called the rhabdosphincter muscle, is situated just inferior to the prostate. Its circular muscle fibers surround the intermediate, or membranous, part of the male urethra forming an annular sphincter.

Detailed explanation-2: -Two muscles as urethral sphincters are used to control the exit of urine in the urinary bladder through the urethra. The two muscles are the internal and EUS.

Detailed explanation-3: -The external sphincter is under voluntary control as it is formed of skeletal muscle.

Detailed explanation-4: -The external urinary sphincter, which works in concert with the internal sphincter, is made up of skeletal muscle controlled by motor fibres of the pudendal nerve.