Which of the following statements about the functions of the paranasal sinuses is false?
A) They provide an extensive area of mucous epithelium.
B) They make skull bones lighter.
C) The mucus they secrete enters the nasal cavities.
D) They support cilia that move the mucus.
E) They create a protected space for blood vessels and nerves.
Answer: E
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Lymph fluid enters the venous circulation via the
A) right atrium. B) subclavian veins. C) brachiocephalic trunks. D) jugular veins. E) superior and inferior vena cava.
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