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jldobro jldobro
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7 years ago
Which sphincter, when it relaxes, allows bile to flow into the duodenum?
 
  a. Pyloric sphincter
  b. Sphincter of Oddi
  c. Ampulla of Vater
  d. Ileocecal valve
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7 years ago
ANS: B
When the sphincter of Oddi relaxes, bile flows into the duodenum. The pyloric sphincter controls flow of fluid from the stomach to the duodenum. Secretions from the pancreas empty into the common bile duct at the ampulla of Vater. The ileocecal valve prevents reflux of digested mate-rial from the colon into the small intestine.
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