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IMPORTANT TOPIC RELATED TO NUTRITION IN HUMAN BEINGS

Alimentary canal = The alimentary canal is basically a long tube extending from the mouth to the anus. 
Saliva = A fluid which secreted by the salivary glands, which helps to digest the food . Saliva contains an enzymes called salivary amylase, that breaks down starch in complex molecule to give sugar.

Gastric glands = The digestion function are take care of by the gastric glands present in the wall of the stomach. These release hydrochloric acid, a protein digesting enzyme called Pepsin, and mucus. The hydrochloric acid creates an acidic medium which facilitates the action of the enzyme Pepsin.

Pancreas = It secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.

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