Question

during the swallowing process, the structure that closes off the larynx is the:
(a) pharynx.
(b) epiglottis.
(c) fascia.
(d) trachea.
(e) septum.

Explanation:

To solve this, we recall the function of each structure:

• Pharynx: Part of the digestive and respiratory tracts, not closing the larynx.
• Epiglottis: A flap that closes over the larynx during swallowing to prevent food from entering the respiratory tract.
• Fascia: Connective tissue, not related to larynx closure.
• Trachea: Windpipe, carries air, not closing the larynx.
• Septum: Divides cavities (e.g., nasal septum), not related to larynx closure.

Answer:

B. epiglottis