Body systemsQuestion 1622 of 1700
What is a bolus?
- A muscle in the throat that pushes food down
- A flap that covers the airway
- A soft mass of food that is partly broken down
- A type of enzyme in the saliva
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Correct answer: A soft mass of food that is partly broken down
After chewing and mixing with saliva, the bolus moves down the digestive tract when swallowed.
Questions last reviewed: 18 October 2026