KROK 1 2019 – Question 102 · KROK (Medicine) · Physiology
An isolated heart was used to study excitation conduction velocity in different areas of the heart. What area had the lowest velocity of excitation conduction?
- A. Ventricular myocardium
- B. Atrial myocardium
- C. Purkinje fibers
- D. His bundle
- E. Atrioventricular node
Hint
Compare fiber diameter, gap-junction density and the type of channels that produce the upstroke in each of these tissues.
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