Cardiovascular System

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Across
  1. 3. Cava deoxygenated blood enters through here.
  2. 7. WBC
  3. 9. middle layer of heart wall
  4. 12. RBC
  5. 13. Artery takes blood from heart to lungs
  6. 15. carries deoxygenated blood/ has valves
Down
  1. 1. Largest artery in body
  2. 2. fluid filled sac around your heart
  3. 4. upper Chambers of the heart
  4. 5. Vein takes blood from lungs to heart
  5. 6. lower chambers of the heart
  6. 8. Clots blood
  7. 10. smallest blood vessel
  8. 11. lines inside chambers of heart
  9. 14. carries oxygenated blood/ no valves