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List the role of each of the following i...

List the role of each of the following in our digestive system :
(i) Muscles of atomach wall
(ii) Hydrochloric acid
(iii) Mucus.

Text Solution

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(i) Help in mixing the food thoroughly with more digestive juice by peristalsis.
(ii) Creates an acidic medium which facilitates the action of the enzyme pepsin.
(iii) Protects the inner lining of the stomach from the action of the acid.
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