sphincter
IPA: sfˈɪŋktɝ
noun
- (anatomy) A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.
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Examples of "sphincter" in Sentences
- The sphincter muscle controls the opening and closing of the rectum
- Incontinence can occur when the sphincter is weakened or damaged
- The sphincter relaxes to allow food to pass through the esophagus into the stomach
- Hemorrhoids can cause discomfort and irritation around the anal sphincter
- Pilates exercises can help strengthen the pelvic floor muscles, including the sphincter
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