very easy

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Across
  1. 3. has acid
  2. 4. connects your larynx to your lungs.
  3. 7. absorbs nutrents
  4. 9. goes to the Bronchioles
  5. 10. takes in o2
  6. 11. carries o2
  7. 12. absorbs excess water
Down
  1. 1. lquid in blood
  2. 2. mechanical
  3. 5. upper part of heart
  4. 6. form clots
  5. 8. lower part of heart
  6. 9. air passages inside the lungs
  7. 13. connects the pharynx to the stomach