Across
- 3. Allows oxygen to enter blood stream
- 7. Primary muscle involved in breathing
- 8. Top of the lung
- 10. Base of the alveoli
- 13. Long bone in the center of the chest
- 14. Provides pleural fluid aș a lubricant
- 17. Covered in alveoli
- 18. Made up of alveoli
- 19. Protects Lungs, heart and liver
- 20. Located in between visceral and parietal pleura
Down
- 1. Above right middle lobe
- 2. Carries deoxygenated blood from right ventricle to lungs
- 4. Surround and protect the heart
- 5. Separates the superior and middle lobe of the right lung
- 6. Regulate air flow in and out of the lungs
- 9. Carries oxygenated blood away from the heart
- 11. Controls rib cage movement for breathing
- 12. Transports food to stomach
- 15. Located in the center of the throat, above the thymus
- 16. Allow oxygen to enter blood stream and carbon dioxide to exit