Across
- 2. device manages arrhythmia and heart rate
- 5. improper closure of heart valve
- 8. arrest when the heart rhythm stops
- 10. inefficient/irregular contractions of heart
- 12. lower chamber of the heart
- 15. dilation of an arterial wall
Down
- 1. membrane surrounding heart,doubled-layered
- 3. heart rhythms that are abnormal
- 4. vessels carry oxygenated blood from lungs
- 6. innermost lining of the heart
- 7. blood vessel,smallest,material transfers
- 9. temporarily closes off an opening in veins
- 11. blood vessel,largest,carries blood away
- 13. arteries surrounding heart are diseased
- 14. this gas is released by the cells as waste