Across
- 1. respiration that involves exchange of
- 4. notch, indentation on the left lung that
- 5. in cells
- 6. inflammation of the pleural membranes
- 8. movement of air into and out of lungs
- 12. respiration that involves oxygen
- 14. cells which produce surfactant
Down
- 2. the heart
- 3. takes place at the respiratory membrane
- 7. between lungs and blood
- 9. respiration that involve exchange of gases between blood and body cells
- 10. where diffusion of gases occurs
- 11. airway; windpipe
- 13. protein molecule in blood that binds