The Cardiovascular System

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Across
  1. 1. the area where the heart lies
  2. 3. hardening
  3. 4. the top of the heart
  4. 9. the inner layer of the heart
  5. 13. chest
  6. 14. infarction the heart attack, the lack of blood flow is caused by a blockage or a narrowing in one of the coronary arteries
  7. 16. pulse
Down
  1. 2. narrowing
  2. 5. the small arteries
  3. 6. fast
  4. 7. has the function to pump blood to the rest of the body
  5. 8. the outer layer of the heart, the visceral pericardium
  6. 10. the muscular layer that contracts to pump blood
  7. 11. the largest artery in the body
  8. 12. heart
  9. 15. the bottom of the heart