Across
- 4. Muscular tube connecting pharynx to stomach.
- 6. Dome-shaped muscle separating chest and abdomen.
- 8. vessel carrying oxygenated blood from the left lung.
- 10. layer directly on the lung surface.
- 13. Space between visceral and parietal pleura.
- 14. Central chest bone where ribs attach.
- 15. airway connecting to air sacs.
- 16. air passage to the lungs.
- 17. Muscular organ that circulates blood through the body.
- 19. Inferior division of the left lung below the oblique fissure.
- 20. Microscopic interalveolar openings enabling collateral airflow.
Down
- 1. Lobe of the right lung between superior and inferior lobes.
- 2. Pleural layer not directly attached to the lungs.
- 3. structure protecting lungs.
- 5. Layers that reduce friction around the heart.
- 7. Lung lobe located above the middle lobe on the right.
- 9. Microscopic lung sac where oxygen and carbon dioxide are exchanged.
- 11. highest part of the lung.
- 12. Major vessel that splits into left and right pulmonary arteries.
- 18. organ which is behind the sternum.