What part of the heart's conduction system initiates the heartbeat?

What part of the heart's conduction system initiates the heartbeat?

What part of the heart's conduction system initiates the heartbeat?



a. atrioventricular node (AV)

b. sinoatrial node (SA)

c. purkinje fibers

d. atrioventricular bundle (Bundle of His)




Answer: B


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