What is the main role of the nose and nasal cavities in the respiratory system?

Question 4 options:

To regulate effects of elevation

To produce sound for speech

To store excess oxygen

To filter, warm, and humidify the air

1 answer

The main role of the nose and nasal cavities in the respiratory system is to filter, warm, and humidify the air. This function is essential for preparing the air before it enters the lungs, ensuring that it is at the appropriate temperature and moisture content, and helping to remove particles and pathogens.