The respiratory system
Across
- 2. amount of additional air breathed out after normal expiration
- 7. volume of air breathed out in one minute
- 8. oxygenated red blood cells
- 10. volume of air forced out of the lugs after maximal inspiration
- 12. voice box
- 13. hundreds of them in each lung
- 14. where gas exchange takes place
- 16. total lung capacity after inhaling deeply
- 18. dome shaped muscles
- 19. contains the heart and lungs
- 20. volume of air taken in as well as normal tidal volume
- 21. volume of air that remains in lungs after max. Inspiration
Down
- 1. c-shaped rings of cartilage creating a tube
- 3. draw ribs up and out and down and in
- 4. small flap of cartilage
- 5. connects nasal cavity to larynx and oesophagus
- 6. one type of gas is exchanged for another
- 9. breathing
- 11. nose hairs
- 13. subdivide until deep into the lungs
- 15. gas on one side and blood flowing past on the other
- 17. the volume of air breathed in and out per breath