sphincter

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sphincter

Anatomy a ring of muscle surrounding the opening of a hollow organ or body and contracting to close it

Sphincter

 

a ringlike muscle that constricts to close a natural orifice such as the oral or anal opening, or to narrow the passage from one part of a hollow tubular organ to another, for example, from the stomach and bile duct to the duodenum and from the bladder to the urethra. The sphincter is always in a tonic state. The orbicular muscle of the iris is a sphincter. Some sphincters consist of striated muscle and others of smooth muscle innervated by the autonomic nervous system.

sphincter

[′sfiŋk·tər]
(anatomy)
A muscle that surrounds and functions to close an orifice.
References in periodicals archive ?
Artificial urinary sphincter for post-prostatectomy incontinence in men who had prior radiotherapy: A risk and outcome analysis.
5 cm artificial urinary sphincter cuff erosion occurs predominantly in irradiated patients.
749 Sling 1 (3) 3 (4) AUS 2 (6) 2 (2) ProACT 0 (0) 1 (1) RT: radiation therapy; AUS: artificial urinary sphincter.
Efficacy of artificial urinary sphincter implantation after failed bone-anchored male sling for postprostatectomy incontinence.
Successful outcome of artificial urinary sphincters in men with post-prostatectomy urinary incontinence despite adverse implantation features.
The long-term outcome of artificial urinary sphincters.
Quality of life and continence assessment of the artificial urinary sphincter in men with minimum 3.
The artificial urinary sphincter for post-radical prostatectomy incontinence: impact on urinary symptoms and quality of life.
Artificial urinary sphincter placement in men after cystectomy with orthotopic ileal neobladder: continence, complications, and quality of life.
Questions 1-3 pertain to symptoms prior to artificial urinary sphincter (AUS) implantation, 4-32 pertain to symptoms after AUS implantation
Knowing what you know now, would you have an artificial urinary sphincter placement again?