Cardiovascular

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Across
  1. 2. another name for hardening of the arteries
  2. 5. the group of pacemaker cells that are near the entrance of the superior vena cava
  3. 11. the third step in the blood circulation of the heart
  4. 14. blood vessels that carry blood back to the heart
  5. 16. thin layer that lies within the chambers
  6. 17. step seven in the blood circulation of the heart
  7. 18. blood vessels that carry blood away from the heart
  8. 19. also called white blood cells
  9. 22. condition with a higher number of white blood cells than normal
Down
  1. 1. middle layer that mostly consists of the cardiac mucsle
  2. 3. higher number of red blood cells than normal
  3. 4. also called red blood cells
  4. 6. step 13 in the blood circulation of the heart
  5. 7. the first step in the blood circulation of the heart (superior/inferior)
  6. 8. another name for mitral valve
  7. 9. a heartbeat below 60 bpm
  8. 10. outside layer of the heart that helps reduce friction
  9. 12. heart relaxation
  10. 13. tissue death is called _________
  11. 15. structure that separates the lower chambers of the heart
  12. 20. heart contraction
  13. 21. an inherited blood clotting disorder