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Question

The pH of succus entericus is

A
7.6
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B
6.6
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C
5.6
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D
2
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Solution

The correct option is C 7.6
The pH gets changed rapidly from highly acid pH in the stomach to about pH 6 in the duodenum. The pH increases in the small intestine. There is rise in the level of pH from 6 to about 7.4 in the terminal part of the ileum. The pH drops to 5.7 in the caecum. There is increase in the pH reaching 6.7 in the rectum. 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.
Thus, the correct answer is option A.

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