Question

Crypts of Lieberkühn secrete

• A. Gastric juice
• B. Sacculus rotundus
• C. Succus entericus
• D. Bile juice

Answer 1

The correct option is C

Succus entericus

The correct option is C.

Explanation of the correct option:

1. The inner side of the small intestine is lined with finger-like projections called villi.
2. In between the villi, the mucous membrane of the small intestine folds to form the intestinal glands called Crypts of Lieberkühn.
3. Crypts of Lieberkühn secrete intestinal juice or succus entericus.
4. Succus entericus is a yellow fluid with a pH of 7.6, which contains water, mucus, and enzymes.
5. Succus entericus helps in the digestion of carbohydrates, proteins, fats, and nucleic acid.

Explanation of the incorrect option:

Option A:

Gastric juice is secreted by the inner linings of the stomach which facilitates digestion.

Option B:

In rabbits, sacculus rotundus is a structure present at the end of the ileum, which helps in digestion.

Option D:

Bile juice is secreted by the liver which helps in the emulsification of fat.

Final Answer: Crypts of Lieberkühn secrete Succus entericus.