Across
- 1. events of one heartbeat
- 6. -distributes the impulse out of the ventricle
- 7. -graphic record of heart attacks
- 10. -uncoordinated shuddering of the heart muscle
- 11. closing of av valves
- 13. -ventricles relax
- 17. -very slow heart rate
- 18. -carries a signal from the heart
- 19. -rapid heart rate
- 20. -ventricles beat at their own rate
Down
- 2. -clogged coronary vessles
- 3. -series of nerves that carry the electrical impulses into the lower chambers
- 4. -atria contract
- 5. -abnormal heart sounds
- 8. -ventricles contract
- 9. -lack of adequate blood supply
- 12. -pacemaker of the heart
- 14. -heart muscle deprived of O2
- 15. -semilunar valves close at end of systole
- 16. -prolonged angina