Respiratory System

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Across
  1. 2. This builds up in alveoli with emphysema
  2. 6. Gas that is breathed out from lungs
  3. 8. Process where glucose and oxygen make energy
  4. 10. This is high to let lots of oxygen from lungs
Down
  1. 1. Air sacs where oxygen's passed to blood
  2. 3. An adaptation of alveoli to let gases pass through
  3. 4. Two tubes that enter the left and right lungs
  4. 5. Smaller tubes that lead to the alveoli
  5. 7. Gas that is absorbed into the blood from lungs
  6. 9. Connects nose to the lungs