Respiratory System

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Across
  1. 2. large muscles on the floor of the chest cavity that cause breathing
  2. 3. small air sacs in the lungs
  3. 5. pull air into the lungs
  4. 8. gas in the air needed by your body
  5. 9. push air into the lungs
  6. 10. sticky,slime like substance found in the nose
  7. 11. gas produced by your body as a waste product
  8. 12. another name for breathing
  9. 13. major organs for respiration/breathing
Down
  1. 1. tiny hairs found in the nose
  2. 4. voicebox
  3. 6. flap of skin that keeps found out of the trachea
  4. 7. two tubes that branch off trachea to carry air to the lungs
  5. 11. smallest blood vessels