Where is the Oddi sphincter located?

The sphincter of Oddi refers to the smooth muscle that surrounds the end portion of the common bile duct and pancreatic duct. This muscle relaxes during a meal to allow bile and pancreatic juice to flow into the intestine.

What is the anatomical name for the sphincter of Oddi?

The sphincter of Oddi (also known as the sphincter of ampulla or choledochal sphincter) is a complex of four smooth muscle sphincters within the duodenal wall.

What does the sphincter of Oddi connect?

The sphincter of Oddi surrounds the end of the tubes (ducts) that connect the gallbladder, liver, and pancreas to the first part of the small intestine (duodenum). The sphincter opens to let digestive juices flow through the ducts from the gallbladder, liver, and pancreas into the small intestine.

What passes through the sphincter of Oddi?

The sphincter of Oddi is a muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through ducts from the liver and pancreas into the first part of the small intestine (duodenum).

What foods should be avoided with sphincter of Oddi?

Foods to avoid

  • coffee and other caffeinated beverages.
  • chocolate.
  • red meat and pork, even when cut lean.
  • fried, fatty, or greasy foods.
  • spicy foods.
  • alcohol.
  • fruits, especially acidic fruits.
  • fibrous raw vegetables.

How many sphincters does Oddi have?

This prevents the bile and pancreatic juice from flowing through, and causes a backup of digestive juices. The backup can cause severe pain in the abdomen. There are two basic types of sphincter of Oddi dysfunction: Biliary dysfunction (the digestive juices are backing up in the bile ducts from the liver);

What is SOD pain like?

The main symptom of SOD is severe stomach pain that comes and goes. The symptoms can feel similar to a gallbladder attack. You may have pain in your upper belly that seems to move, or spread, into your right shoulder. You may also have chest pain that feels like a heart attack.

What relieves SOD?

Medication. Nitrates and calcium channel blockers have been used to help relieve symptoms. These medications can sometimes stop the spasms associated with sphincter of Oddi dysfunction and should be offered first in type III SOD patients before suggesting invasive therapies.