Across
- 5. Produce a fluid that allows lungs to glide over thorax walls
- 6. Holds the esophagus open and allows it to expand
- 9. Serosa that covers the surface of each lung
- 11. Most known organ in the respiratory system on the right
- 13. Organ found in between the right and left lung
- 14. The lobe between the superior and inferior lobe of the right lung
- 15. A bone found superficial to the lungs
- 16. The space in between the parietal pleura and the visceral pleura
- 17. Found underneath the lungs, where the base rests upon
- 19. A conducting passageway that leads into the respiratory zone structures
- 20. Connect neighboring air sacs and provide alternate routes for air
Down
- 1. A central area that houses the heart
- 2. The lower lobe of the left lung
- 3. Part of the respiratory zone that are not alveoli
- 4. The broad lung area resting on the diaphragm
- 7. The end of bronchioles, also called air sacs
- 8. The top most lobe of the right lung
- 10. The seperation of the superior and middle lobe of the right lung
- 12. Most known organ in respiratory system on the left
- 18. Narrow superior portion of each lung