Cardiovascular System

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Across
  1. 2. Inner lining of the heart
  2. 4. Smallest Blood Vessel
  3. 7. Heart muscle layer
  4. 8. Blood vessel that carries blood to the heart
  5. 9. Artery carrying deoxygenated blood to the lungs
  6. 13. Red Blood Cell
  7. 14. Lower chambers in heart
  8. 15. Protective sac around the heart
Down
  1. 1. Largest Vein
  2. 3. Platelet
  3. 5. Vein carrying oxygenated blood to the heart
  4. 6. White Blood Cell
  5. 10. Largest Artery
  6. 11. Blood vessel that carries blood away from the heart
  7. 12. Upper chambers in heart