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  • Plicae circulares begin near the proximal part of the duodenum and end   Option: 1 at the end of du

Plicae circulares begin near the proximal part of the duodenum and end 

 

Option: 1

at the end of duodenum

 


Option: 2

near the middle of the duodenum

 


Option: 3

at the end of jejunum

 


Option: 4

near the middle of ileum

 


Answers (1)

best_answer
 

Circular Folds:

  • These are also called folds of Kerckring or plica circulare. 
  • These are deep ridges in the mucosa and submucosa.
  • They begin near the proximal part of the duodenum and end near the middle of the ileum. 
  • These folds facilitate absorption.
  • Their shape causes the chyme to spiral, rather than move in a straight line, through the small intestine. 
  • Spiraling slows the movement of chyme and provides the time needed for nutrients to be fully absorbed.

Plicae circulares begin near the proximal part of the duodenum and end near the middle of the ileum. Hence, the correct answer is option d.

Posted by

Sanket Gandhi

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