Question

which of the following is not a function of the nasal cavity?
a warms inhaled air
b humidifies inhaled air
c removes dirt and dust from inhaled air
d removes oxygen from inhaled air

Explanation:

The nasal cavity warms, humidifies, and filters (removes dirt and dust) inhaled air. It does not remove oxygen from inhaled air as the process of gas - exchange occurs in the lungs.

Answer:

D. removes oxygen from inhaled air