Biology for IGCSE & O level - Human Nutrition (Section 3 - No. 42)
What is the role of the tongue in the digestive process?
To secrete saliva.
To churn food in the stomach.
To mix food with saliva and help with swallowing.
To absorb nutrients in the small intestine.
Explanation
The tongue helps to mix food with saliva to form a bolus and pushes the food down the throat.
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