Circulatory System

12345678910111213141516171819202122
Across
  1. 2. the number of chambers in a fish heart
  2. 5. the largest vein of the body
  3. 10. the blood transportation system
  4. 14. blood with carbon dioxide molecules
  5. 15. the greek word for blood vessels
  6. 17. the number of chambers in an amphibian heart
  7. 18. particles that stop blood loss, scabs
  8. 21. the small organs that carry blood
  9. 22. cells that hold oxygen/carbon dioxide
Down
  1. 1. the largest artery of the body
  2. 3. blood with oxygen molecules
  3. 4. blood vessels that go back to the heart
  4. 6. gas exchange happens here
  5. 7. the cells of your immune system
  6. 8. the fluid that circulations the body
  7. 9. blood vessels that always go away from the heart
  8. 11. the number of chambers in a mammal heart
  9. 12. the hollow muscle that squeezes to pump blood
  10. 13. holds blood in specific chambers of the heart
  11. 16. the greek word for heart
  12. 18. the fluid part of blood
  13. 19. the largest vein that comes from the head
  14. 20. the thickest part of the heart