Does exchange of gases occurs in nasal cavity?

No, exchange of gases does not occur in the nasal cavity.

The primary function of the nasal cavity is to filter, warm, and humidify inhaled air before it reaches the lungs. It does not participate in gas exchange, which is the process of oxygen and carbon dioxide exchange between the air and the bloodstream.

Gas exchange takes place in the lungs, specifically in the alveoli. The alveoli are tiny air sacs in the lungs where oxygen from the inhaled air diffuses into the bloodstream, and carbon dioxide from the bloodstream diffuses into the exhaled air.