A sphincter is a circular band of muscle tissue that, when contracted, cuts off the flow of material from one place to another. There are two urinary sphincters, one at the base of the bladder and one at the pelvic canal along the urethra. The purpose of both sphincters is to prevent urinary leakage.
Mainly the urinary sphincters prevent the backflow of urine backwards into the bladder and the kidneys. Sphincters allow one-way flow and to prevent leakage (or in other words, prevent accidental urine loss).
The Urinary System
Sphincter muscles. They are smooth muscles found in various parts of the body, such as the digestive system and urinary tract, and control the opening and closing of tubes or openings.
The pancreas is NOT in the urinary system.
What is the function of the cardiac sphincter?
The structures that are retroperitoneal in a cat's urinary system are the kidneys, the ureters, and the urinary bladder. Retroperitoneal means that these structures can be found behind the peritoneum.
Infections, of course, known as UTI's (Urinary Tract Infections). Then, you can have incontinence, which is the inability to control the bladder sphincter and hold urine in. Kidney stones are common also. Interstitial cystitis is a chronic condition causing pain and scarring. That's usually found in women. Men can get prostatitis which affects the bladder as well.
Urinary tissue and skin tissue .
The tissues are called epithelium, which are made of epithelial cells. There are different types of epithelium. In the urinary bladder, the cells are transitional epithelium, which allows it to stretch and shrink.
No. The kidneys are part of the excretory system.
Images of ileal conduit urinary system can be found in any good Urology or urological diversions book, including 'Fecal and Urinary Diversions' by Colwell, Goldbery and Carmel, 2012.
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