Circulatory System

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Across
  1. 4. Something beginning with 'n' that the circulatory system transports
  2. 5. The top 2 chambers of the heart
  3. 7. Blood on the right side of the heart
  4. 8. Vessels which allow transport into and out of cells
  5. 12. Vessels which return blood to the heart
  6. 14. Phase of the cardiac cycle, atria contracts and forces blood into ventricles
  7. 17. A factor which effects heart rate
  8. 18. Something beginning with 'o' that the circulatory system transports
  9. 19. The largest artery in the human body
  10. 20. Blood flows through here to get to the lungs from the right ventricle
  11. 22. Phase of the cardiac cycle, heart is relaxed and the atria fill with blood
  12. 24. These blood cells transport O2 and CO2 around the body
  13. 25. A factor which effects heart rate
Down
  1. 1. Arteries, capillaries and veins
  2. 2. Blood on the left side of the heart
  3. 3. Blood vessels with thick walls
  4. 6. Phase of the cardiac cycle, ventricles contract and blood ejected from ventricles
  5. 9. These blood cells help fight infections and disease
  6. 10. Contain valves to keep blood flowing in one direction
  7. 11. Word for the maintenance of correct body temperature
  8. 12. The bottom 2 chambers of the heart
  9. 13. Blood flows through here from the lungs to the left atrium
  10. 15. Strongest side of the heart
  11. 16. Pumps blood
  12. 20. Helps with the clotting of blood
  13. 21. Vessels which carry blood away from the heart
  14. 23. The liquid part of blood