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July 28, 2014

Homework Help: health

Posted by Anonymous on Thursday, March 26, 2009 at 8:10am.

Which of the following structures are tubes?
A. Frontal, maxillary, sphenoidal, ethmoidal
B. Eustachian, pharynx, bronchi
C. Cilia, adenoids, mucous, epiglottis
D. Apex, base, hilum

b

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