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nouna ring of muscle that contracts to close an opening
Similar:
Definition that contains sphincter
- piles venous swelling external or internal to the anal sphincter
- hemorrhoid venous swelling external or internal to the anal sphincter
- haemorrhoid venous swelling external or internal to the anal sphincter
- sphincter ani the sphincter muscle of the anus
- musculus sphincter urethrae a striated sphincter muscle that constricts the urethra
- anal sphincter the sphincter muscle of the anus
- chyme a semiliquid mass of partially digested food that passes from the stomach through the pyloric sphincter into the duodenum
- pyloric sphincter the sphincter muscle of the pylorus that separates the stomach from the duodenum
- light reflex reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
- musculus sphincter ductus choledochi the smooth muscle sphincter of the common bile duct