Question

Which of the following prevents entry of food particles into the respiratory passage?

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

Hint:

The epiglottis is a critical structure that prevents choking by directing food into the esophagus and blocking the airways during swallowing.

Answer 1

The Correct Option is B

Step 1: Understanding the role of the epiglottis.
The epiglottis is a flap-like structure that covers the opening of the trachea to prevent food particles from entering the respiratory passage during swallowing.
Step 2: Analyzing the options.
(A) Tongue: Incorrect, the tongue does not prevent food from entering the respiratory passage.
(B) Epiglottis: Correct, the epiglottis is responsible for covering the trachea during swallowing to prevent food from entering the lungs.
(C) Pharynx: Incorrect, the pharynx is a passage for both food and air, but it does not block food from entering the respiratory system.
(D) Glottis: Incorrect, the glottis is the opening between the vocal cords, not a protective barrier.
Step 3: Conclusion.
The correct answer is (B) Epiglottis, as it prevents food from entering the respiratory passage.