Which of the following is not a function of the conducting part of the respiratory system?

Options

1. Inhaled air is humidified
2. Temperature of inhaled air is brought to body temperature
3. Provides surface for diffusion of O2 and CO2
4. Clears inhaled air from foreign particles

Correct Answer

Provides surface for diffusion of O2 and CO2

Explanation

The conducting part transports, filters, and conditions air, but gaseous exchange occurs in the respiratory zone (alveoli).

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