A 32-year-old woman was diagnosed with myocarditis. ECG detects disturbance of the cardiac rhythm (a non-sinus rhythm). What cardiomyocytes are dysfunctional in this case?

Answer options

1. Conducting cardiomyocytes of the his bundle branches
2. Conducting cardiomyocytes of the bundle of his
3. Contractile cardiomyocytes
4. Transitional conducting cardiomyocytes
5. Pacemaker cells