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  2. External sphincter muscle of female urethra - Wikipedia

    en.wikipedia.org/wiki/External_sphincter_muscle...

    The external sphincter muscle prevents urine leakage as the muscle is tonically contracted via somatic fibers that originate in Onuf's nucleus and pass through sacral spinal nerves S2-S4 then the pudendal nerve to synapse on the muscle. [7] [10] Voiding urine begins with voluntary relaxation of the external urethral sphincter.

  3. Fowler's syndrome - Wikipedia

    en.wikipedia.org/wiki/Fowler's_syndrome

    Urinary retention is a relatively uncommon presentation in young women. Fowler's syndrome primarily presents in women between menarche and menopause. The peak age of onset is 26 yrs. [5] It is seen in about one third of the women who experience urinary retention. The predominant complaint is the inability to urinate for a day or more with no ...

  4. Urethral sphincters - Wikipedia

    en.wikipedia.org/wiki/Urethral_sphincters

    The female or male external sphincter muscle of urethra (sphincter urethrae): located in the deep perineal pouch, at the bladder's distal inferior end in females, and inferior to the prostate (at the level of the membranous urethra) in males. It is a secondary sphincter to control the flow of urine through the urethra.

  5. Bladder sphincter dyssynergia - Wikipedia

    en.wikipedia.org/wiki/Bladder_sphincter_dyssynergia

    Bladder sphincter dyssynergia (also known as detrusor sphincter dyssynergia (DSD) (the ICS standard terminology agreed 1998) [1] and neurogenic detrusor overactivity (NDO)) is a consequence of a neurological pathology such as spinal injury [2] or multiple sclerosis [3] which disrupts central nervous system regulation of the micturition (urination) reflex resulting in dyscoordination of the ...

  6. Internal urethral sphincter - Wikipedia

    en.wikipedia.org/wiki/Internal_urethral_sphincter

    The internal urethral sphincter is a urethral sphincter muscle which constricts the internal urethral orifice. It is located at the junction of the urethra with the urinary bladder and is continuous with the detrusor muscle , [ 1 ] [ 2 ] but anatomically and functionally fully independent from it. [ 3 ]

  7. External sphincter muscle - Wikipedia

    en.wikipedia.org/wiki/External_sphincter_muscle

    External sphincter muscle of female urethra; External sphincter muscle of male urethra This page was last edited on 11 ...

  8. Urethral hypermobility - Wikipedia

    en.wikipedia.org/wiki/Urethral_hypermobility

    Urethral hypermobility is a condition of excessive movement of the female urethra due to a weakened urogenital diaphragm. It describes the instability of the urethra in relation to the pelvic floor muscles. A weakened pelvic floor muscle fails to adequately close the urethra and hence can cause stress urinary incontinence. This condition may be ...

  9. Urethral syndrome - Wikipedia

    en.wikipedia.org/wiki/Urethral_syndrome

    Urethral syndrome is defined as symptoms suggestive of a lower urinary tract infection but in the absence of significant bacteriuria with a conventional pathogen. [1] It is a diagnosis of exclusion in patients with dysuria and frequency without demonstrable infection. [2] In women, vaginitis should also be ruled out. [3]