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In men, prostate surgery (prostatectomy, TURP, etc) and radiation therapy can damage the sphincter and cause stress incontinence. [7] Neurogenic bladder dysfunction can involve a malfunctioning urethral sphincter. [8] Urge incontinence can happen when the urethra cannot hold the urine in as the bladder contracts uncontrollably. [9]
The walls of the bladder have a series of ridges, thick mucosal folds known as rugae that allow for the expansion of the bladder. The detrusor muscle is the muscular layer of the wall made of smooth muscle fibers arranged in spiral, longitudinal, and circular bundles. [ 8 ]
This is the intramural part of the urethra surrounded by the internal urethral sphincter and varies between 0.5 and 1.5 cm in length depending on the fullness of the bladder. Transitional: Prostatic urethra: Crosses through the prostate gland. There are several openings at the posterior wall:
In males, the urethral crest is known as the crista urethralis masculinae, or the crista phallica, and is a longitudinal fold on the posterior wall of the urethra extending from the uvula of the bladder through the prostatic urethra. [1] It is from 15 to 17 mm. in length, and about 3 mm. in height, and contains muscular and erectile tissue.
The human seminal vesicles are a pair of glands in males that are positioned below the urinary bladder and at the end of the vasa deferentia, where they enter the prostate. Each vesicle is a coiled and folded tube, with occasional outpouchings termed diverticula in its wall. [2]
The injections help weaken the bladder’s nerves so “the bladder wall doesn’t contract as much, therefore downregulating how much your body has to go to the bathroom,” Shusterman said ...
The rectovesical pouch is a space between the rectum and the bladder in men. [1] It lies above the seminal vesicles. [2] It is lined by peritoneum and at its base is the rectoprostatic fascia (Denonvillier's fascia). When a man is upright or supine, it is the lowest part of his peritoneal cavity. [3]
Prostate cancer is one of the most common cancers affecting older men in the UK, US, Northern Europe and Australia, and a significant cause of death for elderly men worldwide. [33] Often, a person does not have symptoms; when they do occur, symptoms may include urinary frequency, urgency, hesitation and other symptoms associated with BPH.