Across
- 3. Flap of tissue that prevents food entering the respiratory tract
- 6. Tube with "C" shaped rings of cartilage
- 7. The blood vessel that sits on the outside of the alveoli
- 10. Muscles in between the ribs
- 11. The movement of gasses from an area of high concentration to an area of low concentration
- 13. Technical term for breathing out
Down
- 1. Dome shaped muscle, important in breathing
- 2. The back of the throat
- 4. Technical term for breathing in
- 5. One of the main structures of the respiratory system
- 7. The main gas we want to get out of the body
- 8. Known as the voice box
- 9. We have around 300 million of these sacs in the lungs
- 12. The main gas we want to absorb into the body