Question

pH of succus entericus is

• A. 6.6
• B. 5.6
• C. 2
• D. 7.8

Answer 1

Answer: (D)

7.8

D. 7.8.

Solution: Succus entericus is the alkaline secretion produced by glands in the duodenum lumen, which consists of water, mucoproteins, and hydrogen carbonate ions. It helps counteract the highly acidic and proteolytic chyme entering from the stomach into the small intestine, and thus protects the duodenum against damage. The pH increases in the small intestine. The average pH of the small intestine secretion is 7.5 - 8. Succus entericus is the intestinal juice. The pH of the juice is 7.6.