Across
- 2. complex ventricles contact
- 3. decrease in oxygen carrying ability of blood
- 6. contraction of ventricles
- 8. Node carries on the signal from the SA node to the BOH
- 11. blood cell formation
- 13. rapid HR
- 15. epinephrine, thyroxine
- 18. Fibers distributes the impulse out to the ventricles
- 19. semilunar valves close at end of systole
- 20. atria contact
Down
- 1. clogged coronary vessels
- 4. very slow HR
- 5. relaxation of ventricles
- 7. Pectoris crushing chest pain
- 9. cycle events of one heartbeat
- 10. abnormal or unusual heart sounds
- 12. Node pacemaker of the heart
- 14. lack of adequate blood supply to the heart
- 16. ventricles relax
- 17. closing of AV valves