Multiple choice

Crypets of Lieberkuhn are involved in

  1. secretion of succus entericus

  2. secretion of rennin

  3. secretion of ptylin

  4. digestion of food
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A Correct answer
Explanation

The mucous amembrane of intestinal wall is a single layered eptithelium of tall columber cells with interspersed golbelt cells. Thee epithelial cells have microvilli. In between the villi the mucous membrane is profusely folded and the infolding form pit-like simple tubular intestinal glands or crypts of Leiberkuhn. These secrete the intestinal digestive juice called succus entericus. Rennin is component of gastric juice secreted from stomach. It secreted in form of inactive proenzyme called prorennin. It changes the soluble casein proein of milk into insoluble semifluid calcium paracaseinate.Saliva is secreted from salivary glands. The saliva contain ptyalin (salivary amylase) in mammals. 

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