Answers

2014-09-24T15:54:16+05:30
Our stomach secreates hcl, pepsin , mucus . the mucus present in the stomach protects the inner surface of the stomach from burning . the layer of mucus is renewed every 3-4 days..
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2014-09-24T15:54:22+05:30
In our stomach their is a layer of epithelial cells which protects the inner lining from the gastric juice
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