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Which statement is not true of the pharynx?

A. The nasopharynx is a passageway only for air.
B. The tonsils are lymphatic tissue that destroy pathogens in incoming air and food.
C. During swallowing, the nasopharynx is covered by the epiglottis.
D. The laryngopharynx opens into the larynx and the esophagus.



Answer :

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Final answer:

The nasopharynx is not solely a passageway for air, and it is not covered by the epiglottis during swallowing. The laryngopharynx opens into the larynx and the esophagus.


Explanation:

The statement that is not true of the pharynx is:

  • A. The nasopharynx is a passageway only for air.

The nasopharynx serves as a passageway for both air and food, not solely for air. During swallowing, the nasopharynx is not covered by the epiglottis; it is covered by the uvula and soft palate to prevent ingested materials from entering the nasal cavity. The laryngopharynx is the part of the pharynx that opens into the larynx and the esophagus, not the nasopharynx.


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