Multiple Choice
Which of the following statements about the functions of the paranasal sinuses is false?
A) The mucus they secrete enters the nasal cavities.
B) They make skull bones lighter.
C) They provide an extensive area of mucous epithelium.
D) They support cilia that move the mucus.
E) None of the above-all are true.
Correct Answer:

Verified
Correct Answer:
Verified
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