Across
- 3. uncoordinated shuddering of heart muscle
- 7. red blood cells,transport 02 in blood
- 8. heart muscle deprived of O2
- 13. clogged coronary vessels
- 14. constrict damaged blood vessel
- 15. rapid heart rate(>100/beats/min)
- 17. closing of AV valves
- 18. iron-containing protein, binds to O2
- 19. events of one heartbeat
- 20. ventricles contract
Down
- 1. fragments needed for clotting blood
- 2. very slow heart rate
- 4. lack of adequate blood supply to heart
- 5. clot in unbroken blood
- 6. contraction of ventricles
- 9. low blood platelet count
- 10. low blood platelet count
- 11. abnormally shaped blood cells
- 12. bone marrow becomes cancerous
- 16. decreases in oxygen carrying ability of blood