KROK 1 2023 – Question 138 · KROK (Medicine) · Histology, Cytology, and Embryology
A 32-year-old woman was diagnosed with myocarditis. ECG detects a disturbance of the cardiac rhythm (a non-sinus rhythm). What cardiomyocytes are dysfunctional in this case?
- A. Transitional conducting cardiomyocytes
- B. Conducting cardiomyocytes of the bundle of His
- C. Pacemaker cells
- D. Conducting cardiomyocytes of the His bundle branches
- E. Contractile cardiomyocytes
Hint
A non-sinus rhythm means the sinus node has lost control of the heart; think about how the role of its cells differs from that of cells that only relay or execute the impulse.
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