Across
- 2. exchange gases between blood and tissue cells
- 8. Cell fragments
- 10. 45%
- 13. decreases friction as blood flows
- 17. blood cell formation
- 18. blood away from the heart
- 19. clot in unbroken blood vessel
Down
- 1. high blood pressure
- 3. artery walls thicken
- 4. bone marrow becomes cancerous
- 5. RBC's
- 6. thrombus breaks away and floats freely
- 7. stoppage of bleeding
- 9. 55%
- 11. elastic tissue
- 12. supports and protects vessel
- 14. Low RBC count
- 15. WBC's
- 16. Blood back to the heart
- 20. iron-containing protein