Where does bradycardia originate?
A) AV node
B) Bundle of HIS
C) SA node
D) Purkinje fibers
Ans: C
Feedback: An impulse that originates in the sinoatrial (SA) node and at a slow rate is called sinus bradycardia. Bradycardia does not originate in the AV node, the Bundle of HIS, or the Purkinje fibers.
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