Answers

2014-09-24T15:48:50+05:30
Mucous present in oesophagus  creates a layer around stomach which contains bicarbonate ions acts against hcl and protects stomach
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2014-09-24T15:50:31+05:30
HCL is secreated by the stomach . stomach als secreates pepsin , mucus .  the mucus present in the stomach forms a protective layer around the inner surface of the stomach thus protecting it

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