Which of the Following Is a Function of Periciliary Fluid

question 71

Multiple Choice

Which of the following is a function of periciliary fluid?

• A) It allows only air, but not food or liquid, into the respiratory tract.
• B) It facilitates thickening of the mucus along the respiratory tract.
• C) It acts as the site of gas exchange between the air and blood.
• D) It causes turbulence in inhaled air in the nasal cavity.
• E) It facilitates movement of mucus along the respiratory tract.

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