How does the body protect itself from aspiration of food into the lungs when we eat?
A) The voice box moves down and covers the vocal cords.
B) The epiglottis moves to cover the tracheal opening.
C) The trachea closes.
D) The vocal cords close, preventing aspiration.
Ans: B
Feedback: As a bolus of food is swallowed, the epiglottis moves to cover the tracheal opening and prevent aspiration of food into the lungs.
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