Exam questionKROK 1Medicine · 2011
Heart rate of a 30-year-old man under emotional stress reached 112 bpm. The reason for the heart rate increase is the altered condition of the following conducting system of heart:
Answer options
- His’ bundle branches
- Purkinje’s fibers
- Sinoatrial node
- Atrioventricular node
- His’ bundle
Correct answer
Sinoatrial node
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