The sphincter of Oddi is a muscular valve that plays a vital role in digestion. It controls the flow of bile and pancreatic juice. It opens and closes to let the juices flow from the liver and ...

The esophageal sphincters are bands of muscles at the top and bottom of the esophagus — the muscular tube that passes food and drink from the mouth to the stomach. Esophageal sphincters open and close ...

Your urinary sphincter is the muscle that controls urine flow from your bladder. An artificial urinary sphincter (AUS) is a device that takes over the work of a non-functioning urinary sphincter. This ...

A retrospective study of patients with distal rectal cancer at Memorial Sloan Kettering Cancer Center (MSK) has found a higher rate of local recurrence after intersphincteric resection with handsewn ...