Circulatory system

12345678910111213
Across
  1. 4. the lower chambers of the heart
  2. 5. Where blood gets oxygen
  3. 7. color of cells that fight infection
  4. 9. Vein that receives all blood before going back into the heart
  5. 11. The upper chambers of the heart
  6. 12. vessels that bring blood to the heart
  7. 13. Needs oxygen from the blood every three minutes
Down
  1. 1. Small blood vessels that bring blood to organs
  2. 2. the unneeded gas that is exhaled
  3. 3. color of cells that carry oxygen
  4. 6. the liquid that blood is made of
  5. 8. The main organ of the circulatory system
  6. 9. vessels that bring blood away from the heart
  7. 10. An beating of your heart felt through an atery (theres one in your neck and one in your wrist)
  8. 12. biggest artery of the body