Sphincter of Oddi

Sphincter of Oddi

Infobox Anatomy
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Caption = Interior of the descending portion of the duodenum, showing bile papilla.


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MeshName = Oddi's+Sphincter
MeshNumber = A03.159.183.079.300.900.600
DorlandsPre = s_18
DorlandsSuf = 12748595
The Sphincter of Oddi, also called the hepatopancreatic sphincter or Glisson's sphincter, controls secretions from the liver, pancreas, and gallbladder into the duodenum of the small intestine. It is named after Ruggero Oddi. [WhoNamedIt|synd|2709]

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 (of Vater).

Clinical significance

Endoscopic retrograde cholangiopancreatograms (ERCP's), 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.

References

External links

* [http://abdellab.sunderland.ac.uk/lectures/Parmacology/Pics/anatomy/BileAnat.jpgDiagram at sunderland.ac.uk]


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Look at other dictionaries:

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  • sphincter d'Oddi — ● Sphincter d Oddi structure musculaire lisse, située à l entrée du duodénum, qui ferme le débouché du canal cholédoque (qui conduit la bile) et du canal de Wirsung (qui conduit le suc pancréatique) …   Encyclopédie Universelle

  • Sphincter d'Oddi — Le sphincter d Oddi, appelé également papille d Oddi, est un muscle de forme annulaire qui est situé à la partie terminale commune au canal cholédoque (transportant la bile) et au canal de Wirsung (transportant les sucs pancréatiques). Il… …   Wikipédia en Français

  • sphincter of Oddi — sphincter of Od·di äd ē n a complex sphincter closing the duodenal orifice of the common bile duct Od·di ȯd dē Ruggero (1864 1913) Italian physician. While studying in vivo the action of the bile on digestion, Oddi discovered the sphincter of… …   Medical dictionary

  • sphincter of Oddi dysfunction — abdominal pain or jaundice with failure of the sphincter of Oddi to function properly; it may occur several years after cholecystectomy or owing to other unknown causes. Called also biliary dyskinesia …   Medical dictionary

  • sphincter of oddi — ˈädē Usage: usually capitalized 2d O Etymology: after Ruggero Oddi, 19th century Italian physician : a complex sphincter closing the duodenal orifice of the common bile duct …   Useful english dictionary

  • sphincter of Oddi — noun A muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through the ampulla of Vater into the second part of the duodenum …   Wiktionary

  • Sphincter of ampulla — Interior of the descending portion of the duodenum, showing bile papilla. Latin m. sphincter ampullae MeSH …   Wikipedia

  • sphincter — [ sfɛ̃ktɛr ] n. m. • 1548; mot lat. d o. gr. ♦ Muscle annulaire disposé autour d un orifice naturel qu il resserre et ferme en se contractant. Sphincter de l anus; sphincter anal, vaginal. ● sphincter nom masculin (bas latin sphincter, du grec… …   Encyclopédie Universelle

  • Sphincter — A sphincter is an anatomical structure, or a circular muscle, that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals; there …   Wikipedia

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