| musculus sphincter | the sphincter muscle of the anus |
|---|---|
| musculus sphincter | an external ring of striated muscle surrounding the anus |
| musculus sphincter | an internal ring of smooth muscle formed by circular fibers of the rectum |
| musculus sphincter | the smooth muscle sphincter of the common bile duct |
| musculus sphincter | the smooth muscle sphincter of the main pancreatic duct |
| musculus sphincter | a ring of smooth muscle surrounding the iris |
| musculus sphincter | the sphincter muscle of the pylorus that separates the stomach from the duodenum |
| musculus sphincter | a striated sphincter muscle that constricts the urethra |
| musculus sphincter | the sphincter muscle of the urinary bladder |