Question:
Entry of food into trachea is prevented by ___________.
Entry of food into trachea is prevented by ___________.
Show Hint
A cartilage flap covers the opening of the windpipe during swallowing.
Updated On: Nov 12, 2026
- Gullet
- epiglottis
- glottis
- iter
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
The throat is shared by food and air, so a flap is needed to keep food out of the windpipe.
Step 2: Role of the epiglottis
During swallowing, the leaf-like epiglottis folds back over the glottis and closes the entrance to the trachea.
Step 3: Compare the options
The gullet is the food pipe, the glottis is the opening itself, and the iter is a channel in the brain.
Final Answer:
The epiglottis prevents food from entering the trachea. \[ \boxed{\text{(B) }\text{epiglottis}} \]
The throat is shared by food and air, so a flap is needed to keep food out of the windpipe.
Step 2: Role of the epiglottis
During swallowing, the leaf-like epiglottis folds back over the glottis and closes the entrance to the trachea.
Step 3: Compare the options
The gullet is the food pipe, the glottis is the opening itself, and the iter is a channel in the brain.
Final Answer:
The epiglottis prevents food from entering the trachea. \[ \boxed{\text{(B) }\text{epiglottis}} \]
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