answersLogoWhite

0

Letting the gases to pass within them in order to ventilate the alveoli. Humidify the air intaken in order to protect the lungs from drying out. Cleanse the air from particulate matters between 5 and 10 micrometers, owing to a sticky mucus layer that constantly moves upward due to the beats of cilia on the epithelium that lines the inside of the air passages.

User Avatar

Wiki User

16y ago

What else can I help you with?