Blood Cells

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Across
  1. 4. formation of platelets]
  2. 7. immunity (produces anti-bodies)
  3. 11. found within red blood cells
  4. 12. red blood cell
  5. 13. responds to allergic response
  6. 15. formation of all blood cells
  7. 16. lack of oxygen;dark red
  8. 19. makes blood red/binding site of oxygen
  9. 20. hormone that increase RBC production
Down
  1. 1. formation of white blood cells
  2. 2. white blood cell that defends RBC
  3. 3. contains enzymes that aid attack
  4. 5. formation of red blood cells
  5. 6. Red blood cells live this long
  6. 8. Protein that combines with 02
  7. 9. plenty of oxygen; bright red
  8. 10. found in tissues
  9. 14. found in blood
  10. 17. first WBC to the site of infection
  11. 18. decrease in the oxygen carrying by RBC