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