Cardiovascular System

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Across
  1. 2. sac surrounding the heart
  2. 4. blood on the left side of the heart
  3. 8. blood on the right side of the heart
  4. 9. fibers responsible for contracting the ventricles
  5. 10. top 2 chambers of the heart
  6. 13. valve at the exit of the left ventricle
  7. 16. valve between the left atrium and ventricle
  8. 17. divides the heart into right and left halves
  9. 18. innermost layer of the heart
  10. 19. vessel responsible for carrying blood away from the heart
Down
  1. 1. arteries responsible for providing blood to the heart
  2. 3. muscle layer of the heart
  3. 5. outermost layer of the heart
  4. 6. vessel responsible for carrying blood towards the heart
  5. 7. bottom 2 chambers of the heart
  6. 11. valve between the right atrium and the ventricle
  7. 12. largest artery in the body
  8. 14. vessel where oxygen exchange occurs
  9. 15. valve at the exit of the right ventricle