Respiratory System

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Across
  1. 1. The organ that takes blood away from the heart.
  2. 6. The artery that is rich in CO2.
  3. 8. The vein that is rich in Oxygen.
  4. 9. A _____ keeps blood flowing.
  5. 10. We pump 4-5 liters of this per day.
Down
  1. 2. What part of your heart supplies blood to the feet?
  2. 3. The organ that connects the vein and artery (Where gasses are exchanged.)
  3. 4. The organ that pumps blood through the lungs and body.
  4. 5. The organ that sends blood to the heart.
  5. 7. The organ that oxidizes the blood.