The Respiratory System

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