Across
- 3. The central compartment of the thoracic cavity between the two lungs.
- 10. The primary waste gas removed from the blood via the alveoli.
- 11. Tiny air sacs where gas exchange occurs in the lungs.
- 12. Small, thin walled tubes that branch off from the bronchi.
- 13. The primary muscle of respiration located at the base of the chest cavity.
- 14. Structure that prevents food from entering the trachea during swallowing.
- 17. The main tube connecting the larynx to the bronchi also called the windpipe.
- 19. Tiny blood vessels that wrap around the alveoli for gas exchange.
- 20. The primary gas taken into the blood via the alveoli.
Down
- 1. This side of the lung contains three sections.
- 2. Muscles located between the ribs that assist in breathing.
- 4. A substance in the alveoli that prevents them from collapsing.
- 5. The chamber of the body that protects the heart and lungs.
- 6. The topmost pointed part of the lung.
- 7. The depression on the medial surface of the lung where vessels and airways enter.
- 8. Hair like projections in the airways that help move mucus upward.
- 9. The bottom, broader part of the lung that rests on the diaphragm.
- 15. The double layered membrane that surrounds and protects the lungs.
- 16. The two main branches that carry air into the lungs.
- 18. This side of the lung contains two sections to accommodate the heart.