Number of main digestion sites in human digestive system are:
Correct answer: C. 3
- A. 2
- B. 4
- C. 3
- D. 1
Explanation
There are three main sites of digestion in the human digestive system: the mouth, stomach, and small intestine. The mouth is where food is chewed and mixed with saliva. The stomach is where food is churned and digested by gastric juices. The small intestine is where most of the digestion and absorption of nutrients takes place.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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