Cardiovascular System

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Across
  1. 1. color of deoxygenated blood
  2. 3. type of muscle the blood vessels are
  3. 6. approximate size of the heart
  4. 7. the top two chambers of the heart
  5. 9. valve connects the right atrium and right ventricle
  6. 12. the heart has four of these sections
  7. 16. valve connects left atrium & left ventricle
  8. 17. the sac or double layered membrane on the outside of the heart
  9. 18. valve connects right ventricle and pulmonary arteries
  10. 20. type of muscle the heart is
  11. 21. the largest artery in the body
  12. 24. location the non-oxygenated blood enters from the vena cava
Down
  1. 2. innnermost layer of the heart, connects with the blood vessels
  2. 4. the artery the oxygenated blood leaves the heart to go to the body
  3. 5. the bottom two chambers of the heart
  4. 8. color of oxygenated blood
  5. 10. 3 main parts of this system include- the heart, blood vessels and _________
  6. 11. two largest veins in the body
  7. 13. valve connects the left ventricle and the aorta
  8. 14. muscular wall in the center of the heart, divides into left & right sides
  9. 15. number of one-way valves in the heart
  10. 19. the muscular, middle layer of the heart
  11. 20. another name for cardiovascular system
  12. 22. location the oxygenated blood enters from the pulmonary veins
  13. 23. number of chambers in the heart