Across
- 4. double membrane that protects the lungs
- 5. middle section by oral cavity
- 7. windpipe
- 8. between lung space
- 11. upper section by nasal cavity
- 15. exchange of oxygen and carbon dioxide in the lungs
- 19. sacs where gas exchange takes place
- 20. sections of a lung
- 22. signs blood pressure, temperature, respiratory rate, and pulse
- 23. roof of mouth
- 24. throat
- 25. tubes leading to alveoli
Down
- 1. breathing in
- 2. flap that covers trachea
- 3. airways in lungs
- 6. separates abdomen and thorax cavities; moves lungs, pushes air out
- 9. thick and sticky secretion of membrane
- 10. oxygen and carbon dioxide in lungs
- 12. between 2 pleura layers
- 13. sac around each lung
- 14. within facial bones; echo chamber
- 15. opening found in nasopharynx, tube that opens with each swallow
- 16. muscles between the ribs
- 17. wall between the nose
- 18. small hairs lining the opening to the nasal cavity
- 21. breathing out
- 26. voice box