Across
- 6. irregular heart beat
- 7. 3 leads that conduct electrical activity recorded on ECG
- 8. carry deoxygenated blood to the heart
- 10. exchange of materials between circulation and cells
- 11. device that measures blood pressure
- 12. an infection that is hidden, inactive or dormant
- 13. pacemaker of the heart
Down
- 1. carry oxygenated blood to the heart
- 2. long-term viral disease
- 3. rapid, strong, irregular heartbeat
- 4. slow heart rate under 60 BPM
- 5. checks for problems with the electrical activity of the heart
- 9. contraction of the chambers of the heart