10.7 Crossword Puzzle Challenge

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Across
  1. 4. smallest blood vessel
  2. 6. brings oxygen-poor blood into the heart from the upper parts of the body
  3. 9. small vein
  4. 10. upper chamber of the heart
  5. 11. breakdown of a clot
  6. 12. condition of deficient oxygen
  7. 13. small artery
  8. 14. carries oxygenated blood from the lungs to the heart
Down
  1. 1. brings blood from the lower half of the body to the heart
  2. 2. valve that lies between the left atrium and the left ventricle
  3. 3. valve that lies between the right atrium and the right ventricle
  4. 4. disease condition of heart muscle
  5. 5. largest artery in the body
  6. 7. lowest chamber of the heart
  7. 8. carries oxygen-poor blood to the lungs from the heart