Why is the QRS complex so large?

Related questions

1. What is QRS Dur in ECG?
2. What does a positive deflection in an ECG represent?
3. What does low QRS amplitude mean?
4. Which event causes the QRS wave on an ECG tracing?
5. What is QRS duration in ECG?
6. What is QRS on ECG?
7. What is the heart doing during the QRS complex?
8. What is QRS in medical terms?
9. What does a wide QRS complex mean?
10. What does rightward axis mean on ECG?

Tags

1. #small
2. #because
3. #relatively
4. #amplitude
5. #ventricles
6. #chambers
7. #being
8. #atrial
9. #repolarization
10. #muscle
11. #since
12. #corresponds
13. #heart
14. #complex
15. #substantial
16. #largest
17. #depolarization
18. #ventricular
19. #finally
20. #depicts
21. #right
22. #limited
23. #represents