1 The internal sphincter muscle of urethra: located at the bladder's inferior end and the urethra's proximal end at the junction of the urethra with the urinary bladder. 2  The internal sphincter is a continuation of the detrusor muscle and is made of smooth muscle, therefore it is under involuntary or autonomic control.hen either of these muscles contracts, the urethra is sealed shut. The external urethral sphincter originates at the ischiopubic ramus and inserts into the intermeshing muscle fibers from the other side. It is controlled by the deep perineal branch of the pudendal nerve.
Universal Technology already is the third largest defense contractor in the Dayton area based on DoD contract value, according to Dayton Business Journal research, and has about 230 employees, including 200 locally.
Since 1981, Universal Systems provides unparalleled expertise and quality products when it comes to home and commercial audio, video, security, networking, access control, and automation services and more. We provide clients with custom tailored systems that are designed to mesh perfectly with your property and needs. With over 50 years of combined experienced and in-house Master Crestron programmer, we're #1 in audio, video, and automation. All employees have a security license and background check too.