Occasionally food or liquids will "go down the wrong pipe," initiating a cough reflex. Which structural barrier has been breached if this happens?

Occasionally food or liquids will "go down the wrong pipe," initiating a cough reflex. Which structural barrier has been breached if this happens? 



A. Laryngopharynx
B. Uvula
C. Epiglottis
D. Glottis



Answer: C


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