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