Circulatory system

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Across
  1. 1. What are the smallest blood vessels that connect arteries and veins called?
  2. 3. What is the liquid part of blood called?
  3. 6. What is the only vein that carries oxygenated blood called?
  4. 8. associated with the heart
  5. 9. forms into fibrin to make a mesh during blood clotting
  6. 12. What is the largest artery in the body called?
  7. 14. blood vessel that carries blood from the intestines to the liver
  8. 15. What is the circulation of blood between the heart and the lungs called?
  9. 17. What is the condition in which fatty deposits build up inside arteries called?
  10. 19. What are the blood vessels that carry blood away from the heart called?
  11. 23. What are the cell like structures in blood that help with blood clotting called?
  12. 24. What is the force of blood against the walls of blood vessels called?
  13. 25. What is the circulation of blood between the heart and the rest of the body called?
  14. 26. What are the blood vessels that carry blood back to the heart called?
Down
  1. 2. valves in the main blood vessels of the heart
  2. 4. What is the artery that carries blood from the heart to the lungs called?
  3. 5. part of heart that receives blood from the body
  4. 7. What is the protein in red blood cells that binds to oxygen called?
  5. 10. most powerful section of the heart
  6. 11. What are the arteries that supply blood to the heart muscle called?
  7. 13. valves in the heart that separate the atria and ventricles
  8. 16. What are the cells in blood that transport oxygen called?
  9. 18. the hole in arteries and veins
  10. 20. What is the rhythmic contraction and relaxation of the heart called?
  11. 21. What are the cells in blood that fight infection by engulfing pathogens called?
  12. 22. What are the two large veins that return blood to the heart from the body called?