sphincter muscle
English Thesaurus
1. a ring of muscle that contracts to close an opening (noun.body)
| hyponym | : | physiological sphincter, |
| definition | : | a sphincter that is not recognizable at autopsy because its resting arrangement cannot be distinguished from adjacent tissue (noun.body) |
| hyponym | : | anal sphincter, musculus sphincter ani, sphincter ani, |
| definition | : | the sphincter muscle of the anus (noun.body) |
| hyponym | : | musculus sphincter urethrae, urethral sphincter, |
| definition | : | a striated sphincter muscle that constricts the urethra (noun.body) |
| hyponym | : | bladder sphincter, musculus sphincter vesicae, |
| definition | : | the sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening (noun.body) |
| hyponym | : | musculus sphincter ductus choledochi, |
| definition | : | the smooth muscle sphincter of the common bile duct (noun.body) |
| hyponym | : | musculus sphincter ductus pancreatici, |
| definition | : | the smooth muscle sphincter of the main pancreatic duct (noun.body) |
| hyponym | : | musculus sphincter pupillae, pupillary sphincter, |
| definition | : | a ring of smooth muscle surrounding the iris (noun.body) |
| hyponym | : | musculus sphincter pylori, pyloric sphincter, pyloric valve, |
| definition | : | the sphincter muscle of the pylorus that separates the stomach from the duodenum (noun.body) |
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