Year 8 Circulatory System

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Across
  1. 1. the chambers in the top half of the heart
  2. 3. main artery that carries blood from the heart to the body
  3. 5. pressure wave in the artery as the heart beats
  4. 8. blood cells that carry oxygen
  5. 11. small parts of blood that help with clotting
  6. 12. relating to the lungs
  7. 13. a type of blood vessel that usually carries oxygenated blood
  8. 14. organ that transfers oxygen into the blood stream
  9. 15. keeps the heart beating
  10. 16. the finest blood vessels
  11. 18. with oxygen
  12. 19. blood vessel that travels toward the heart
Down
  1. 2. tube that passes air to the lungs
  2. 4. no oxygen
  3. 6. highest blood pressure
  4. 7. a chamber of the heart
  5. 9. lowest blood pressure
  6. 10. the blood pumping organ
  7. 11. liquid in the blood
  8. 17. prevents blood flowing the wrong way