Cardiovascular System Crossword

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Across
  1. 1. chronically elevated arterial blood pressure
  2. 4. muscles anchoring atrioventricular valves (2 words)
  3. 5. resistance vessels controlling blood flow into capillaries
  4. 6. small vessels collecting blood from capillaries
  5. 9. chamber responsible for systemic circulation (2 words)
  6. 12. vessels supplying oxygenated blood to heart muscle (2 words)
  7. 15. electrical activation of cardiac muscle cells
  8. 21. fibrous cords preventing valve prolapse (2 words)
  9. 22. amount of blood ejected per ventricle per beat (2 words)
  10. 26. thick-walled vessels carrying blood away from the heart
  11. 28. semilunar valve between left ventricle and aorta (2 words)
  12. 29. arterial pressure during ventricular relaxation (2 words)
  13. 33. inner endothelial lining of the heart chambers
  14. 35. valve between right atrium and right ventricle (2 words)
  15. 38. protective sac surrounding the heart
  16. 39. volume of blood pumped by the heart per minute (2 words)
  17. 41. primary pacemaker initiating cardiac depolarization
  18. 42. conduction pathway between atria and ventricles (3 words)
  19. 43. terminal conduction fibers causing ventricular contraction (2 words)
  20. 44. sequence of contraction and relaxation in one heartbeat (2 words)
  21. 46. bicuspid valve between left atrium and left ventricle
  22. 50. vessel that carries deoxygenated blood from the right ventricle to the lungs (2 words)
  23. 52. red blood cells transporting oxygen
  24. 54. large vein returning deoxygenated blood to the right atrium (2 words)
  25. 55. traveling clot that can obstruct blood flow
  26. 56. phase of ventricular relaxation and filling
Down
  1. 1. oxygen-binding protein in red blood cells
  2. 2. abnormally low blood pressure
  3. 3. phase of ventricular contraction
  4. 7. vein draining blood from the upper body to the heart (3 words)
  5. 8. white blood cells involved in immune defense
  6. 10. abnormally fast heart rate
  7. 11. microscopic vessels allowing exchange of gases and nutrients
  8. 13. thin-walled vessels returning blood to the heart
  9. 14. pathway supplying blood to the lungs (2 words)
  10. 16. buildup of lipid plaques in arterial walls
  11. 17. abnormal heart rhythm
  12. 18. number of heartbeats per minute (2 words)
  13. 19. arterial pressure during ventricular contraction (2 words)
  14. 20. stationary blood clot within a vessel
  15. 23. semilunar valve between right ventricle and pulmonary artery (2 words)
  16. 24. force exerted by blood on vessel walls (2 words)
  17. 25. muscular wall separating the L and R side of the heart
  18. 27. lower chamber of the heart that pumps blood out of the heart
  19. 30. vessel that returns oxygenated blood from the lungs to the left atrium (2 words)
  20. 31. pathway supplying oxygenated blood to the body (2 words)
  21. 32. vein draining blood from the lower body to the heart (3 words)
  22. 34. upper chamber of the heart that receives blood
  23. 36. muscular layer of the heart wall
  24. 37. structures preventing backflow in veins
  25. 40. recording of electrical activity of the heart
  26. 45. largest artery carrying oxygenated blood from the left ventricle
  27. 47. chamber responsible for pulmonary circulation (2 words)
  28. 48. outer layer of the heart wall
  29. 49. abnormally slow heart rate
  30. 51. delay center conducting impulses to the ventricles
  31. 53. cell fragments involved in blood clotting