Across
- 3. responsible for receiving electrical impulses from AV node and transmits the impulses to the bundle branches
- 4. small mass of tissue; right upper atrium which serves as the heart's primary pacemaker
- 5. reference point created by three limb leads
- 7. causes muscles to contract
- 10. patient is positioned on a treadmill for this test
- 14. measurements for both voltage and time
- 15. the total number of valves found in heart
- 17. regulates the impulses between atria and ventricles
- 18. the number of precordial leads
- 19. responsible for physical contraction of the heart muscle
- 20. rapid heart rate
Down
- 1. most common position for EKG testing
- 2. relaxation phase of heart
- 6. records heart activity from 12 angles and planes
- 8. 25mm/second
- 9. outer layer of heart
- 11. lines the chambers of the heart and forms the surface of valves
- 12. only one pole
- 13. interference that alters the EKG tracing
- 16. Dividing wall between the atria