Respiratory Puzzle

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Across
  1. 2. / passage for airway
  2. 3. / branching airways
  3. 5. / covers larynx during swallowing
  4. 6. / common passageway for air, food and liquid
  5. 7. Muscle / moves ribs during respiration
  6. 10. Membrane / cover the lungs and line the chest cavity
  7. 13. / skeletal muscle of respiration
  8. 15. / air sacs of gas exchange
Down
  1. 1. Cavity / flitters, warms and moistens air
  2. 4. / which an organism absorbs from the environment gases necessary for its cellular metabolism
  3. 8. respiration / the chemical reaction in which organic molecules are degraded to make ATP molecules
  4. 9. / transports air to and from lungs
  5. 11. / maintains an open airway, routed food and air appropriately
  6. 12. / series of slender curved bones articulated in pairs to the spine, protecting the thoracic cavity
  7. 14. / passage for food and air
  8. 16. / transport air to alveoli for gas exchange