Which of the following guards the opening of hepatopancreatic duct into the duodenum?

Semilunar valve

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Ileocaecal valve

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Pyloric sphincter

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Sphincter of Oddi

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Solution

The correct option is D Sphincter of Oddi
The opening of hepatopancreatic duct into the duodenum is guarded by sphincter of Oddi. It 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).

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Similar questions

Column I	Column II
A. Sphincter of ani internus	1. Opening of hepatopancreatic duct into duodenum.
B. Cardiac sphincter	2. Between duodenum and posterior stomach.
C. Sphincter of Oddi	3. Guarding the terminal part of alimentary canal.
D. Ileocaecal	4. Between oesophagus and anterior stomach.
E. Pyloric sphincter	5. Between small intestine and bowel.

	Column I (Sphincter)		Column II (Location)
A.	Sphincter ani Internus	(i)	Opening of hepatopancreatic ampulla into duodenum
B.	Cardiac sphincter	(ii)	Between duodenum and posterior stomach
C.	Sphincter of Oddi	(iii)	Guarding the terminal part of alimentary canal
D.	Ileocaecal sphincter	(iv)	Between oesophagus and anterior stomach
E.	Pyloric sphincter	(v)	Between small intestine and large intestine

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