MEDICAL
DUODENUM JEJUNUM AND ILEUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ph 2
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ph 4
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ph 5
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ph 6
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ph 7
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Detailed explanation-1: -The pH gradually increases in the small intestine from pH 6 to about pH 7.4 in the terminal ileum. The pH drops to 5.7 in the caecum, but again gradually increases, reaching pH 6.7 in the rectum.
Detailed explanation-2: -Between the stomach and the rest of the small intestine is the duodenum, a brief segment of the small intestine. The hormone secretin is produced in the duodenum to induce the pancreatic secretion of significant amounts of sodium bicarbonate, which increases the chyme’s pH to 7.
Detailed explanation-3: -After swallowing, the food reaches the stomach where upper and lower parts of stomach have different pH values. The upper part has a pH of 4−6.5, while the lower part is highly acidic with a pH of 1.5−4.0. It then enters the intestine which is slightly alkaline, with a pH of 7−8.5.
Detailed explanation-4: -In the small intestine, the enzymes that “work” there need an alkaline pH in order to have optimum working conditions. A second reason is that strong acids (like hydrochloric) can end up damaging the lining of your intestine.