One of the Functions of the Respiratory Mucosa is To

Question

One of the functions of the respiratory mucosa is to
A) help trap contaminants found in inspired air
B) act as a thin barrier between the blood capillaries and alveoli
C) help humidify inspired air
D) both A and C

Accepted Answer

The respiratory mucosa helps trap contaminants found in inspired air and also helps humidify inspired air. Therefore, both options A and C are correct. Option B is incorrect as the respiratory mucosa is not responsible for acting as a barrier between blood capillaries and alveoli.