Across
- 2. Covers the lungs and their vessels
- 5. Primary organ located in the left thoracic
- 8. Located at the end of the respiratory tree
- 10. Upper most portion of the lungs
- 11. Separates middle lobe from superior lobe
- 12. Transports O2 in and CO2 out
- 15. Carries deoxygenated blood
- 16. Covering that encloses the heart
- 18. Wind pipe
- 19. Small shaped gland in the upper chest
- 20. Upper right corner of the thoracic cavity
Down
- 1. Lines the thoracic cavity
- 3. Divides the lung into lobes
- 4. Branches to the bronchi
- 6. Chest area
- 7. Major organ that pumps blood throughout the body
- 9. Tiny air sacs that exchanges gas
- 13. Tiny openings in the walls of the alveoli
- 14. Dome shaped muscle at the bottom of the lungs
- 17. Breastbone