The cardiovascular system

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Across
  1. 4. kidneys
  2. 8. Upper chambers of the heart
  3. 10. Largest artery in the body
  4. 11. Hardening of the arteries
  5. 13. Valve between the right atrium and the right ventricle
  6. 14. Regulates the flow of blood through the heart
Down
  1. 1. Smallest blood vessel
  2. 2. Widening of the blood vessels
  3. 3. Your heart is a little larger than your...
  4. 5. Lining of the heart
  5. 6. Tough muscular wall of the heart
  6. 7. From the right side of the heart, blood goes to the
  7. 9. Defective heart valve
  8. 10. Blood vessel which carries blood from the heart
  9. 12. lungs
  10. 14. Blood vessel which carries blood to the heart