Cardiovascular

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Across
  1. 2. muscle layer of the heart
  2. 6. artery at the base of the brain
  3. 7. blood circuit involving lungs
  4. 9. valve between the left atrium and left ventricle
  5. 13. term for the contraction of the heart
  6. 14. sac around the heart
  7. 15. node that is the pacemaker of the heart
  8. 16. chambers that pump blood to organs
  9. 17. major vein going to the liver
  10. 20. plaque development in arteries
  11. 22. major artery leaving the left ventricle
  12. 24. capillaries with many pores in endothelium
  13. 26. inner layer of a blood vessel
Down
  1. 1. first artery coming off aorta
  2. 3. muscular layer of a blood vessel
  3. 4. level of oxygenation in pulmonary artery
  4. 5. valve between the right ventricle and artery
  5. 8. branch that delivers blood to the left atrium and left ventricle
  6. 10. hole between the atria of a fetus (two words no space)
  7. 11. blood circuit feeding the heart muscles
  8. 12. blood vessels used for nutrient exchange
  9. 13. pericardium containing simple squamous
  10. 18. blood vessels that deliver blood to organs
  11. 19. vessels that distribute blood to organs
  12. 21. level of oxygenation in umbilical vein
  13. 23. chambers that receive blood from vessels
  14. 25. vessels that deliver blood to the heart