The respiratory system
Across
- 4. The process of air entering the body through the mouth or nose.
- 7. The muscle that contracts to pull air into the lungs.
- 10. The process of releasing air from the lungs.
- 11. dioxide The primary waste gas released during exhalation.
- 12. Small blood vessels where gas exchange occurs with the alveoli.
- 14. The primary organ for gas exchange in the respiratory system.
- 15. A chronic respiratory disease that causes narrowing of the airways.
- 16. The smaller airways branching off the bronchi in the lungs.
- 17. The part of the throat that connects the mouth to the esophagus and trachea.
- 18. The windpipe that directs air to the lungs.
Down
- 1. A lung condition that damages alveoli, reducing oxygen absorption.
- 2. Tiny sacs in the lungs where gas exchange occurs.
- 3. The cells lining the respiratory tract that produce mucus to trap particles.
- 5. The primary gas absorbed by the body during inhalation.
- 6. The two large airways that lead from the trachea to the lungs.
- 8. The exchange of gases between the lungs and the blood at the alveoli.
- 9. Small openings on plant leaves that allow for gas exchange, similar to alveoli in the lungs.
- 11. The system that transports oxygenated blood from the lungs to the body.
- 13. The cells responsible for gas exchange in the alveoli.