Body System Review Words.

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Across
  1. 4. System that breaks down food.
  2. 6. Organ the exchanges CO2 and Oxygen with blood.
  3. 7. Intestine Organ where most nutrients is absorbed.
  4. 8. Airways in the lungs lead from bronchi to alveoli.
  5. 11. Carries blood away from the heart.
  6. 12. Tiny sacs of lung tissue used for movement of gases between air and blood.
  7. 13. Passage that directs air into the lungs.
  8. 14. Carries blood towards the heart.
Down
  1. 1. Blood cells that carry oxygen away from lugs.
  2. 2. Collection of tissue that have a special function in the body.
  3. 3. Smallest Blood Vessel.
  4. 5. A group of cells that perform the same function.
  5. 9. Lower chamber of heart.
  6. 10. Liquid part of the blood.
  7. 12. Upper chamber of the heart.