Across
- 3. The clotting process
- 5. Houses a central iron atom
- 7. Resistance to flow
- 9. Lack of oxygen carrying capacity
- 12. The formation of red blood cells
- 13. Red blood cells
- 14. Helps to clot blood
- 15. Where cell production originates
- 16. Protein composed of four hemes
- 18. Cell responsible for the body's allergic response
- 19. Blood stem cells
Down
- 1. Fluid substance of whole blood
- 2. Shape of red blood cells
- 4. White blood cells
- 6. Device that spins blood to separate layers
- 8. Proteins that determine blood type
- 10. Low tissue oxygen concentrations
- 11. Bone marrow cells responsible for formation of platelets
- 12. Hormone that triggers cell production
- 17. Universal blood donor