Across
- 3. covers the diaphragm and lines inner wall of chest
- 6. facilitates optimal lung function
- 9. Takes oxygen from environment and puts it into blood
- 13. Acts as a barrier against infection
- 19. Serve as mobile scavengers to engulf foreign particles in the lungs
- 20. stabilizes arms and shoulders
Down
- 1. Delivers air to alveoli
- 2. carries food and liquid from your mouth to your stomach
- 4. Holds important organs
- 5. cleans inspired air and distributes it to the gas exchanging zone
- 7. pulls are into lungs
- 8. Carry low oxygen blood from the heart to the lungs
- 10. Promotes production of T-cells
- 11. Facilitates gas exchange
- 12. protects organs of the chest
- 14. Has a higher ventilation ratio
- 15. Formed by a structure that connects it to the heart and trachea
- 16. Pumps blood throughout body
- 17. Lubricate the surfaces of the pleurae
- 18. warms and moisturizes air before it enters the lungs