Circulatory System Wrap Up Crossword Puzzle - Eijee Harrington

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Across
  1. 4. outermost tissue layer that envelops all vertebrate hearts
  2. 6. blood vessels that carry blood back to the heart
  3. 8. makes up most of red blood cells
  4. 13. red blood cell
  5. 15. a condition in which blood flow to part of the heart muscle is blocked, causing heart cells to die
  6. 16. the wall of tissue that separates the right side of the heart from the left side of the heart
  7. 17. The muscle layer of the heart
  8. 18. the alternating expansion and relaxation of an artery wall as blood travels through an artery
  9. 20. body system that consist of the heart,blood vessels, and blood
  10. 21. prevent and stop bleeding
Down
  1. 1. abnormally high blood pressure
  2. 2. the pressure that is exerted by the blood against the walls of blood vessels.
  3. 3. each of the two upper chambers of the heart that receives blood that comes into the heart
  4. 5. cell fragments that play an important part in forming blood clots
  5. 7. the innermost layer of the heart
  6. 9. the largest artery of the body
  7. 10. each of the two lower chambers of the heart that pumps blood out of the heart
  8. 11. blood vessels that carries blood away from the heart
  9. 12. the liquid portion of blood
  10. 14. a hollow muscular organ that pumps blood throughout the body
  11. 19. white blood cell