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
- Internal sphincter muscle of urethra.
- External sphincter muscle of male urethra.
- In most people, the anal sphincter is weak.
- External sphincter muscle of female urethra.
- The 'sphincter pupillae' constricts the iris.
- And an artificial sphincter is under development.
- Sphincter of Oddi dysfunction is a rare condition.
- This is due to neuropathy of the bladder sphincter.
- Iridoplegia is the paralysis of the sphincter of the iris.
- Endoanal ultrasound evaluates the structure of the anal sphincters.
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