1. Gas Exchange in Lungs Prof. K. Sivapalan

2. Properties of Gases 20132Gas Exchange

3. Water Vapor Pressure 20133Gas Exchange

4. Diffusion of Gases in Liquids 20134Gas Exchange

5. Diffusion of Different Gases 20135 Oxygen1.0 Carbon Dioxide20.3 Carbon Monoxide0.81 Nitrogen0.53 Helium0.95 Gas Exchange

6. Partial Pressures 20136Gas Exchange

7. Respiratory Membrane A layer of fluid lining the alveolus Alveolar epithelium Epithelial basement membrane Interstitium Capillary basement membrane Capillary endothelium Plasma and red cell 0.6 µ, 70 M 2, 60 – 140 ml of blood 20137Gas Exchange

8. Partial Pressure Difference across respiratory membrane 20138Gas Exchange

9. Factors Affecting Gas Exchange 20139Gas Exchange