1. Lectures on respiratory physiology Diffusion

2. Swim bladder of a fish

3. Fick’s law of diffusion through a tissue sheet

4. Very thin blood-gas barrier

5. Electron micrograph of pulmonary capillary

6. High power view of blood-gas barrier

7. Fick’s law of diffusion through a tissue sheet

8. Kinetic theory of gases

9. Fick’s law of diffusion through a tissue sheet

10. Diffusion and perfusion limitations

11. PARTIAL PRESSURE, mm Hg CO-Hb DISSOCIATION CURVE SATURATION, % CO O2O2

12. Diffusion and perfusion limitations

13. Very thin blood-gas barrier

14. Thickened blood-gas barrier

15. Time courses of P o 2 in the capillary

16. Measurement of Diffusing Capacity

17. Single breath method for D CO

18. Electron micrograph of pulmonary capillary

19. Reduced Hb O 2 solution Mixing Chamber t Spectro Photometer HBO 2 % 100 0 0.10.2 time (sec) Measurement of the rapid reaction of O 2 with Hb

20. The two components of D L

21. Is the transfer of CO 2 ever limited by diffusion?