Circulatory System

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Across
  1. 5. relating to the heart
  2. 6. relating to the lungs
  3. 7. small group of cells that makes sure your heart beats at a steady pace
  4. 8. the first to understand how the circulatory system really works
  5. 12. help form blood clots
  6. 15. another word for sweat
  7. 16. the breathing system
  8. 17. established blood banks during WWII
  9. 18. blood cells that carry oxygen to all parts of the body
  10. 19. upper chamber on each side
  11. 22. vena cava which carries the blood from the lower body
Down
  1. 1. push of blood through the blood vessels
  2. 2. lower chamber on each side of the heart
  3. 3. smallest blood vessels
  4. 4. universal blood that can be donated
  5. 9. carry blood from the heart to all the parts of the body
  6. 10. carry the blood back to the heart
  7. 11. blood cells that help fight diseases and infections
  8. 12. liquid part of blood
  9. 13. vena cava which carries blood from the upper body
  10. 14. bean-shaped organs that are located on either side of your spine
  11. 20. blood transfer of blood to another person
  12. 21. main organ of the circulatory system