Question

Why ph is maintained in the stomach and in the small intestine?

Answer 1

The pH of within the small intestine is 6. This pH is maintained through bicarbonate ions. Where do bile and pancreatic enzymes enter the small intestine? Bile and pancreatic enzymes enter the small intestine through the duodenum.

The intraluminal pH is rapidly changed from highly acid in the stomach to about pH 6 in the duodenum. 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.

Answer 2

Hey mate, here is your answer ==

The pH of stomach maintains because of HCl acid.
The pH of small intestine always maintain because gall bladder releases some bicarbonates in small intestine.

Hope it helps u dear :)