The Circulatory System and Blood

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Across
  1. 2. tissue fluid consists mainly of ... and white blood cells
  2. 6. carry deoxygenated blood
  3. 7. involved in blood clotting
  4. 11. white blood cell
  5. 14. a type of blood vessel
  6. 17. controls heart beat
  7. 18. left atrium recieves blood from the ... vein
  8. 20. condition where the heart is in short oxygen supply
  9. 21. blood vessel carries blood away from the heart
  10. 22. high carbon dioxide concentration ... the heart rate
Down
  1. 1. inorganic element in the blood
  2. 3. the circulatory system in fish
  3. 4. when heart is relaxed
  4. 5. supply blood to the heart
  5. 8. blood vessels assoicated with the kidney
  6. 9. measurement of heart activity
  7. 10. heart valve
  8. 12. blood clot
  9. 13. the scientist who demonstrated the one-way action of valves
  10. 15. heart muscle
  11. 16. component of blood
  12. 19. the circulatory system in humans