Topic summary
Sphincter of Oddi
The sphincter of Oddi (SO) (also hepatopancreatic sphincter or Glisson's sphincter), is a sphincter, a muscular valve that, in humans and some animals, controls the flow of bile and pancreatic juice out of the gallbladder and pancreas respectively through the ampulla of Vater into the second part of the duodenum. It is named after Ruggero Oddi.