Innervation and Histologic Characteristics of the Urinary External Sphincter
Twelve years ago we met here and my assignment at that meeting was to discuss the physiology of micturition. We concentrated on the activity of the detrusor and on the sphincteric mechanism, placing much stress on its two divisions — the smooth component and the striated component. Our thinking about the function of the smooth component has not changed much since then. However, we learned a great deal more about the striated urinary sphincter. This is why the title of this presentation is “The Urinary External Spincter Revisited.”
KeywordsPudendal Nerve External Sphincter Prostatic Urethra Spongy Tissue Striate Muscle Fiber
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