The Role of Striated Sphincter Muscle in Urethral Closure Under Stress Conditions: An Experimental Study
Decisive for urethral closure under stress is an increase in intraurethral pressure. This pressure increase is significantly affected by urethral tonus, passive pressure transmission and reflex pressure transmission. Approximately half of the urethral tonus is produced by the striated sphincter muscles (Rud et al. 1981; Tanagho 1979).
KeywordsPelvic Floor Pelvic Floor Muscle Urethral Pressure Pressure Transmission Urethral Closure Pressure
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- Constantinou CE, Govan DE (1981) Contribution and timing of transmitted and generated pressure components in the female urethra. In: Zinner NR, Sterling A (eds) Female incontinence. Alan R Liss, New York, p 113Google Scholar
- Enhörning G (1961) Simultaneous recording of the intravesical and intraurethral pressure. Acta Chir Scand Suppl 276Google Scholar
- Graber P, Laurent G, Tanagho EA (1974) Effect of abdominal pressure rise on the urethral profile. An experimental study on dogs. Invest Urol 12: 57Google Scholar
- James ED (1976) Transmission of abdominal pressure to bladder and urethra. Proc 6th Annual Meeting Int Continence Soc, AntwerpenGoogle Scholar
- Jonas U, Tanagho EA (1975) Studies on vesicourethral reflexes. I. Urethral sphincteric responses to detrusor stretch. Invest Urol 12: 357Google Scholar
- Jonas U, Tanagho EA (1976) Studies on vesicourethral reflexes. II. Urethral sphincteric responses to spinal cord stimulation. Invest Urol 13: 278Google Scholar
- Miller (1964) Anatomy of the dog. Saunders, PhiladelphiaGoogle Scholar
- Nobuo Koinuma, Seigi Tsuchida, Osamu Nishizawa, Itaru Moriya, Ikuo Wada, Kenichi Ebina (1981) Urethral responses to nerve stimulation measured by strain-gauge force transducer. Proc 11th Annual Meeting Int Continence Soc, LundGoogle Scholar
- Rud T (1981) The striated pelvic floor muscles and their importance in maintaining urinary continence. In: Zinner NR, Sterling A (eds) Female incontinence. Alan R Liss, New York, p 79Google Scholar
- Tanagho EA, Meyers FH, Smith DR (1969) Urethral resistance: its components and implications. I. Smooth muscle component. Invest Urol 7: 136Google Scholar
- Thüroff JW, Bazeed MA, Schmidt RA, Tanagho EA (1982) Mechanisms of urinary continence: An animal model to study urethral responses to stress conditions. J Urol 127: 1202Google Scholar