Cardiovascular

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Across
  1. 4. arterties have ______ wall
  2. 6. the heart at the left side exert higher _____ than the right side
  3. 9. the vein the carried blood from the body to the heart
  4. 10. upper chamber of the heart
  5. 11. after gas exchange. blood has low concentration of ______
  6. 14. the blood vessel that delivers blood away from heart
  7. 16. the liquid part is the blood is called blood _______
  8. 18. lower chamber of the heart
  9. 19. the blood with low oxygen concentration
Down
  1. 1. ______ blood cell fights off bacteria and virus
  2. 2. the blood with high oxygen concentration
  3. 3. ______vein is the blood that carries blood from lung back to heart
  4. 5. the organ that pumps blood around the body
  5. 7. platellets prevents blood lost from forming the ______ around the wound
  6. 8. the organ that perform gas exchange
  7. 9. the blood vessel that delivers blood toward heart
  8. 12. _____ blood cell carries oxygen around the body
  9. 13. after gas exchange. Blood has high concentration of ______
  10. 14. the biggest artery
  11. 15. this structure prevent blood back flow
  12. 17. the wall between right and left side of the heart