![Heart beat initiates from](https://www.gkseries.com/blog/wp-content/uploads/2022/04/Heart-beat-initiates-from.png)
Q. Heart beat initiates from
A. Auriculo-ventricular
B. Sino-auricular node
C. Bundle of His
D. Purkinje fibres
Answer: Sino-auricular node
A. Auriculo-ventricular
B. Sino-auricular node
C. Bundle of His
D. Purkinje fibres
Answer: Sino-auricular node
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