The circulatory system

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Across
  1. 2. measure of heart beat per minute
  2. 3. oxygen rich blood
  3. 5. pumps blood
  4. 7. heart muscle is called
  5. 11. organ where the heart pumps blood to get oxygen
  6. 12. blood vessel that carry red blood
Down
  1. 1. living thing with a backbone
  2. 4. blood vessel that connects artery and vein
  3. 6. blood tubes
  4. 8. fundamental unit of life
  5. 9. blood vessel that carry blue blood
  6. 10. when you feel blood rushing through blood vessels