Which structure is commonly called the voice box?

• A. Epiglottis
• B. Bronchi
• C. Trachea
• D. Larynx

Answer: (D)

The structure commonly called the voice box is the larynx. It houses the vocal cords, and as air from the lungs passes through the glottis between the cords, the cords vibrate to produce sound, allowing us to speak and sing. The larynx also serves as a critical airway valve and helps protect the airway during swallowing.

Other structures have different roles. The epiglottis is a flap that covers the airway opening during swallowing to prevent aspiration, but it doesn’t produce voice. The trachea is the main airway that runs from the larynx down into the lungs, and the bronchi are the branches that lead into each lung; neither is involved in voice production.