Across
- 2. Also called the voice box .
- 3. Also called the wind pipe.
- 7. Inside the aleovi there are capillaries, where there's exchange of oxygen and ______________.
- 9. Are the sites of gas exchange.
- 11. This substance in the nose helps trap bacteria.
- 12. Nostrils are also known as _____.
Down
- 1. Carries air directly into lungs.
- 4. This flap prevents food from going in the larynx.
- 5. Also known as the throat.
- 6. only external part of the Respiratory system that is showing.
- 8. Main Muscle used in breathing.
- 10. It's the main component of the Respiratory System.