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Which of the following parts open into large intestine?

 

Option: 1

Duodenum

 


Option: 2

Ileum

 


Option: 3

Jejunun

 


Option: 4

Both ileum and duodenum

 


Answers (1)

best_answer
 

Duodenum:

  • It follows the stomach and its somewhat C-shaped in structure.
  • It curves towards the left. The head of the pancreas fit into the concavity.
  • Duodenum is U-shaped in rabbits.
  • It receives the hepatopancreatic ampulla (called the ampulla of Vater) of the hepatopancreatic duct. 
  • The opening of the ampulla is guarded by the sphincter of Oddi.

Jejunum:

  • It is the middle part of the small intestine.
  • It follows the duodenum and is about 2.4 m long.
  • Its wall is thicker and muscular then ileum.

Ileum:

  • It is the lower part of the small intestine.
  • It is about 3.5 m long.
  • It opens into the large intestine.

Ileum opens into the large intestine. Hence, the correct answer is option b.

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