cardiac med terms

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Across
  1. 2. 2nd most numerous WBC
  2. 5. the inner layer of the heart
  3. 8. microscopic 1 cell thick vessels
  4. 10. valve located between the left atrium and left ventricle
  5. 11. stopes the backflow into the chambers of the heart
  6. 15. a reaction which particles suspend in a liquid collection into clumps
  7. 17. a process in which WBC surround, engulfs and destroys a pathogen
  8. 18. media middle layer of a blood vessel
  9. 19. arising from the left ventricle
  10. 20. the wall separating the heart into left and right sides
  11. 21. ventricle the left lower side of the heart
Down
  1. 1. iron containing pigment in RBC
  2. 3. most numerous WBC with adults
  3. 4. rapid uncoordinated contractions
  4. 6. the smallest branch of arteries
  5. 7. the smallest of veins
  6. 9. the fluid filled sac surrounding the heart
  7. 12. top layer of clear fluid
  8. 13. the lower pumping chamber of the heart
  9. 14. the contracting phase of the heart
  10. 16. the inner space of a blood vessel