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