NEETZoologyBreathing and Exchange of Gases
What is the main function of the conducting part of the respiratory system?
Options
- ADiffusion of O₂ and CO₂
- BTransport of atmospheric air
- CClearing of foreign particles
- DHumidification and regulation of body temperature
Correct answer
B. Transport of atmospheric air
Step-by-step solution
The outer pleural membrane is in close contact with the thoracic lining. whereas the inner pleural membrane is in contact with the lung surface. The part starting with the external nostrils up to the terminal bronchioles constitute the conducting part whereas the alveoli and their ducts form the respiratory or exchange part of the respiratory system. The conducting part transports the atmospheric air to the alveoli, clears it from foreign particles, humidifies and also brings the air to body temperature. Exchange p