Cardiovascular System

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Across
  1. 3. carries oxygen-poor blood from the lower body areas to the right side of the heart
  2. 5. valve activity that fills and relaces the ventricles and the atria
  3. 7. a flap thats in between left ventricle and left atrium to ensure correct blood flow
  4. 8. lowest blood pressure
  5. 10. an organ that pumps blood throughout the body
  6. 16. makes sure blood flows from the heart to the lungs
  7. 17. sound you hear first due to closing of the atrioventricular valves
  8. 18. makes sure that oxygen-rich blood doesn't flow back into the left ventricle
  9. 19. close and open to allow blood flow in one direction through the heart
  10. 20. blood goes through rest of body and heart
  11. 24. circulates from the left atrium and to the body
Down
  1. 1. makes sure blood flows from lungs to heart
  2. 2. atrium the atrium that receives blood from the lungs
  3. 4. sends the signal through this node the from SA node to the lower heart chambers which contracts them
  4. 6. atrium the atrium that receives blood from the rest of the body
  5. 9. a sac that is full of fluid that provides protection for the heart
  6. 11. circulation blood goes through lungs and heart only
  7. 12. sends electrical signals that contracts the upper heart chambers
  8. 13. sound you hear after dub due to closing of the pulmonary valves and aortic valves
  9. 14. largest vein in the body
  10. 15. valve activity that empties and contracts the ventricles and the atria
  11. 20. carries oxygen-poor blood from the upper body areas to the right side of the heart
  12. 21. circulates from the systemic circulation into the right atrium
  13. 22. manages oxygen-poor blood to reach the lungs
  14. 23. right av valve