Which of the following prevents food from entering the airway during swallowing?
A. Alveoli
B. Pleura
C. Glottis
D. Epiglottis
E. Pharynx
D. Epiglottis
The epiglottis is a flap-like structure that closes off the larynx during swallowing so food and liquids do not enter the respiratory system.
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Fill in the blank(s) with correct word