Clinical and Functional Anatomy of the Urethral Sphincter

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Clinical and Functional Anatomy of the Urethral Sphincter

Continence and micturition involve urethral closure. Especially, insufficient strength of the pelvic floor muscles including the urethral sphincter muscles causes urinary incontinence (UI). Thus, it is most important to understand the main mechanism causing UI and the relationship of UI with the urethral sphincter. Functionally and anatomically, the urethral sphincter is made up of the internal...

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Abnormal electromyographic activity of the urethral sphincter,

A potential association between abnormal electromyographic activity-that is, decelerating bursts and complex repetitive discharges-of the urethral sphincter and difficulty in voiding was examined in 57 women with urinary retention. Abnormal electromyographic activity was found in 33. Ultrasonography of the ovaries in 22 of the 33 women showed that 14 had polycystic ovaries. Of the other eight w...

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Congenital Urethral Sphincter Mechanism Incompetence

The cause is unknown but hereditary factors may play a role. Incontinence may be continuous (Fig. 4, page 11) or intermittent and even when both ureters are ectopic (bilateral ectopic ureter,), the dog can usually still pass a normal stream of urine, despite the copious leakage at other times. Diagnosis is by contrast radiography (special x-ray studies discussed in more detail in the section Ho...

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The urethral sphincter muscle in the male.

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ژورنال

عنوان ژورنال: International Neurourology Journal

سال: 2012

ISSN: 2093-4777,2093-6931

DOI: 10.5213/inj.2012.16.3.102