Respiratory System

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Across
  1. 2. Produce voice
  2. 7. muscular organ forming an airway to the lungs
  3. 8. A tough, flexible tissue that gives structure to the nose
  4. 11. air sacs of the lungs
  5. 12. Covers the opening of the windpipe when swallowing
  6. 14. Sending air out of the lungs
  7. 15. The cavity behind the nose
  8. 16. Taking a substance into the body by breathing
Down
  1. 1. A large airway that leads from trachea to lungs
  2. 3. oxygen is used to make energy from sugars
  3. 4. Movement of molecule from high concentration to low concentration
  4. 5. The airway that leads from the larynx to the bronchi
  5. 6. Protein inside red blood cells
  6. 9. Between the ribs
  7. 10. A tiny branch of air tubes in the lungs
  8. 13. pair of organs in the ribcage