Mastication is carried out by__________?
Correct answer: A. Teeth
- A. Teeth
- B. Tongue
- C. Smooth muscles
- D. All of these
Explanation
Mastication means mechanical chewing, in which the teeth cut, tear and grind food. The tongue helps position food, but smooth muscles do not perform chewing; students may choose all of these because they confuse chewing with later swallowing and gut movements.
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About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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