Exam questionKROK 1Dentistry · 2010
ECG of a patient showed that RR interval equaled 1,5 s, heart rate equaled 40 bpm. What is the cardiac pacemaker?
Answer options
- Left branch of His’ bundle
- His’ bundle
- Right branch of His’ bundle
- Sinus node
- Atrioventricular node
Correct answer
Atrioventricular node
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