Circulatory System

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Reviews the circulatory system.
Crossword Hints
  1. organ that pumps blood
  2. inner lining of heart
  3. wall that divides heart in two
  4. molecule that carries oxygen and carbon dioxide through blood
  5. upper chamber of heart
  6. tissue fluid that has diffused into the lymphatic capillaries
  7. carries blood away from heart
  8. microscopic blood vessels that connect arteries and veins
  9. bean shaped organs that filter lymph
  10. valve between left atrium and left ventricle
  11. largest artery in body
  12. irregularly shaped cell fragements that help clot blood
  13. carry blood back to heart
  14. valve between the right atrium and right ventricle
  15. liquid part of blood