Across
- 3. A section of a lung. The right lung has three lobes, and the left lung has two.
- 6. The throat; a passage that carries air from the nose and mouth to the larynx.
- 7. An opening that allows air to enter and leave the body.
- 10. A large muscle beneath the lungs that helps you breathe in and out.
- 11. Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.
- 12. An organ where oxygen enters the blood and carbon dioxide is removed.
- 13. cavity The hollow space inside the nose where air is filtered, warmed, and moistened.
Down
- 1. Filters, warms, and moistens air before it reaches the lungs.
- 2. Tiny hair-like structures that move mucus and trapped dust out of the airways.
- 4. Two large air tubes that carry air from the trachea into each lung.
- 5. The windpipe; a tube that carries air from the larynx to the bronchi.
- 8. A flap that covers the windpipe when you swallow to stop food entering the lungs.
- 9. The voice box that contains the vocal cords and connects the throat to the trachea.