Question

The structure which prevents entry of food in windpipe during swallowing in mammals is

• A. Epiglottis
• B. Larynx
• C. Pharynx
• D. Glottis

Answer 1

The correct option is A

Epiglottis

The correct option is A.

Explanation of the correct option:

1. The food enters the human body through the mouth.
2. In the mouth, the food is chewed and mixed with saliva.
3. The tongue forces the chewed food (bolus) into the pharynx or the throat.
4. A cartilaginous flap called the epiglottis is present just above the larynx.
5. The larynx which is situated at the entrance of the windpipe is pulled upward to bring it close to the tongue when the epiglottis closes the opening of the windpipe.
6. The epiglottis prevents food from entering it during swallowing.

Final Answer: The structure which prevents entry of food in windpipe during swallowing in mammals is epiglottis.