CARDIOVASCULAR SYSTEM (Heart)

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Across
  1. 1. - relaxation of the heart muscle
  2. 4. - small blood vessels where your body exchanges oxygen rich and oxygen poor blood
  3. 7. - fibers that receive electrical charge form AV node through AV bundle and causes ventricles to contract
  4. 9. - takes deoxygenated blood towards the heart
  5. 11. - sends impulses from your Av node to the Purkinje fibers
  6. 12. - sound made by the semilunar valve closing
  7. 13. - brings deoxygenated blood from the upper parts of the body to the heart
  8. 14. -two upper chambers of the heart
  9. 15. - contraction of the heart muscle
  10. 18. valve - door between your left atrium and left ventricle
  11. 19. - prevents backflow of blood
  12. 20. -contraction of the atria
  13. 22. -Middle layer of the heart that is responsible for pumping blood
  14. 23. - takes deoxygenated blood away from the heart
Down
  1. 2. - largest artery in the body
  2. 3. -chamber that sends blood to the heart
  3. 5. - brings deoxygenated blood from the lower parts of the body to the heart
  4. 6. - type of muscle found in the heart
  5. 8. - thin part that separates right and left ventricle
  6. 9. - contraction of the ventricles
  7. 10. - sound made by the AV valves closing
  8. 16. - visceral layer of serous pericardium
  9. 17. - valve that pumps blood from right atrium to left ventricle
  10. 21. - controls spontaneous generation of impulses