Cardiovascular Heart

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