Across
- 2. _______ is essential for the survival of living cells
- 3. Air enters the body through the ____________
- 5. The waste product exhausted from the lungs
- 7. Interruption of normal breathing will result in _______
- 8. An artificial airway
- 11. The process of propelling inhaled particles upward to be swallowed
- 13. The process by which O2 and CO2 exchange
- 14. When the diaphragm contracts, air is drawn ____
- 15. Air travels under this to get to the larynx
- 16. Blood vessels ______ the air you breath in
- 17. The trachea branches of into a left and right _______
- 18. Your brain triggers your body to take a _______ when CO2 levels rise
- 19. The name of the space between the visceral and parietal pleura
Down
- 1. The exchange of O2 and CO2 at the cellular level
- 4. Another name for the trachea
- 6. The right lung has three, the left lung has two
- 9. Tiny hairs that trap particles and prevent them from entering the lungs
- 10. Grapelike clusters of air sacs
- 12. The name of the pleura membrane that encloses each lung
- 13. The main breathing muscle