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Sphincter of Oddi
Additional recommended knowledge
It is a sphincter muscle located at the surface of the duodenum. It appears slightly distal to the joining of the common bile duct and pancreatic duct as they enter the descending duodenum and forms from the ampulla of Vater. Bile and pancreatic secretions enter the digestive system through this point. The opening on the inside of the descending duodenum after the sphincter of Oddi is called the major duodenal papilla.
Endoscopic retrograde cholangiopancreatograms (ERCPs), which are radiographic examinations of the biliary system, often involve assessment of the bile ducts with a esophagogastroduodenoscopy via the sphincter of Oddi before the injection of iodinated contrast medium.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sphincter_of_Oddi". A list of authors is available in Wikipedia.|