NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an organ
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an organism
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a system
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a tissue
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Detailed explanation-1: -It begins at the mouth (buccal or oral cavity), passes through the pharynx, oesophagus or food pipe, stomach, small intestines, large intestines, rectum and finally ends at the anus. The food particles gradually get digested as they travel through various compartments of the alimentary canal.
Detailed explanation-2: -Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine.
Detailed explanation-3: -It begins with the ingestion of food via the buccal cavity where the food is chewed and saliva gets mixed with it forming a bolus. The saliva having the salivary amylase acts upon the starch and forms maltose and dextrin. The bolus thereafter passes through the oesophagus by peristalsis and reaches the stomach.