4th Anatomy - Heart and Blood

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Across
  1. 4. the system that includes the heart and blood vessels
  2. 5. vena cava where blood returns to the heart from upper body
  3. 10. a double layered protective covering of the heart
  4. 12. sends deoxygenated blood to the lungs
  5. 13. valve between the right atrium and the right ventricle
  6. 14. valve that keeps blood from flowing back into the left ventricle
  7. 17. vena cava where blood returns to the heart from lower body
  8. 20. inner layer of the heart
  9. 21. vessels that carry blood away from the heart
  10. 22. this blood enters on the right side of the heart through the superior and inferior vena cava and leaves through the pulmonary artery to the lungs
  11. 24. this blood is bright red blood that has picked up oxygen from the lungs, and enters back into the heart through the pulmonary lungs
  12. 25. deoxygenated blood enters the heart here
Down
  1. 1. pumps oxygen poor blood to the lungs through the pulmonary valve then the pulmonary arteries
  2. 2. smallest blood vessels
  3. 3. sends oxygenated blood back to the heart
  4. 6. vessels that carry blood towards the heart
  5. 7. valve positioned between the right ventricle and the pulmonary artery
  6. 8. the two lower chambers of the heart, and they pump blood out to the lungs and body
  7. 9. chamber that receives blood from the lungs
  8. 11. the two upper chambers of the heart
  9. 15. pumps blood out of the heart through the aorta aortic valve into the aorta
  10. 16. largest artery; where the blood leaves the heart and is pumped to the rest of the body
  11. 18. prevent back flow of blood
  12. 19. valve between the left atrium and the left ventricle; bicuspid valve
  13. 23. divides the right and left chambers of the heart