Question

quiz instructions
question 58
what structure prevents food and drink from entering the trachea, conducts air, and produces sound?
o pharynx
o nasal cavity
o larynx

Explanation:

The epiglottis is a flap - like structure. During swallowing, it covers the trachea (windpipe) to prevent food and drink from entering it. The bronchus is part of the airway branching system. The pharynx is a common passage for air and food but does not have the specific function of preventing food from entering the trachea. The nasal cavity is involved in air - conditioning of inhaled air. The larynx is mainly for sound production (among other functions related to air passage) but not the primary structure for preventing food from entering the trachea.

Answer:

Epiglottis