sphincter muscle


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ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sphincter muscle - a ring of muscle that contracts to close an opening
muscle, musculus - one of the contractile organs of the body
physiological sphincter - a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue
anal sphincter, musculus sphincter ani, sphincter ani - the sphincter muscle of the anus
musculus sphincter urethrae, urethral sphincter - a striated sphincter muscle that constricts the urethra
bladder sphincter, musculus sphincter vesicae - the sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening
musculus sphincter ductus choledochi - the smooth muscle sphincter of the common bile duct
musculus sphincter ductus pancreatici - the smooth muscle sphincter of the main pancreatic duct
musculus sphincter pupillae, pupillary sphincter - a ring of smooth muscle surrounding the iris
musculus sphincter pylori, pyloric sphincter, pyloric valve - the sphincter muscle of the pylorus that separates the stomach from the duodenum
References in periodicals archive ?
Bizarrely, having Botox injected into her sphincter muscle, which is part of the bladder, meant she could urinate for three months, the only time the 27-year-old has been able to do so since 2015.
In both types, the bladder fills to capacity, and the sphincter muscle is unable to prevent overflow.
Dr Roshan Ara Kazi informed that if a significant amount of the sphincter muscle must be cut, the surgery might be performed in more than one stage.
In the first method, the fistula is mobilized, traditionally by either PSARP or anterior sagittal anorectoplasty approach, and fixed within the sphincter muscle complex at the proposed anal site and a neoanus is created (1,6).
The anal fistula plug poses a lower risk of postoperative impairment of sphincter muscle function and other postoperative complications than the cutting setons and transanal mucosal advancement flap.
A common cause of GERD is a weakened sphincter muscle at the end of the esophagus that functions to keep food and acid in the stomach.
The therapy directly targets the patient's weak or dysfunctional lower esophageal sphincter muscle between the stomach and the esophagus, often the underlying cause of reflux.
This is thanks to a design that relies on the patient's own external sphincter muscle of urethra to regulate the flow of urine through the device.
Congenital mydriasis is defined as congenital absence of iris sphincter muscle which occurs rarely and shows autosomal dominant inheritance (1-4).
This occurs due to poor sphincter muscle tone and the position of the bladder being lower than it should be, where it can no longer be supported by the pelvic floor,' says Jhumur.
Depending on the sphincter muscle thickness we have adjusted the thickness of external anal sphincter and puborectalis of normal children, taken from the previous studies.
It happens due to weaknesses in the structures supporting the bladder and bladder outlet (urethra), mainly the pelvic floor muscles, which then fail to stop urine leaking out when the bladder is under stress, such as when laughing or sneezing, or because of a weakness in the sphincter muscle which normally holds the urethra closed.

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