MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the main function of the digestive system?
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to filter blood
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to break down and absorb nutrients
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to transport oxygen
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to send chemical messages
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Explanation:
Detailed explanation-1: -The digestive system breaks down food into nutrients such as carbohydrates, fats and proteins. They can then be absorbed into the bloodstream so the body can use them for energy, growth and repair. Unused materials are discarded as faeces (poo).
Detailed explanation-2: -The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food.
Detailed explanation-3: -Liver. The liver has many functions, but its main job within the digestive system is to process the nutrients absorbed from the small intestine.
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