Human Respiratory System

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Across
  1. 5. the skeleton that protect the lungs
  2. 7. movement of air into and out of the lungs
  3. 8. during inhalation, the diaphragm will ________
  4. 10. breastbone
Down
  1. 1. where the lungs can be found in the human body
  2. 2. back of mouth
  3. 3. voice box
  4. 4. during exhalation the intercostal muscles will _________
  5. 6. a sheet of muscle found at the vase of the ribcage
  6. 9. wind pipe