Which one generates heart beat? 1.Purkinje fibres 2.cardiac branch of vagus nerve 3.SA node 4.AV node
Answer (1)
Student Expert
16th May, 2020
Hi
The correct option is 3) SA Node.
Explanation :- SA node i.e Sino-atrial node generates action potentials and therefore, it sets the pace of the activities of the heart. Hence, it is generates heartbeat and thus also called as the cardiac pacemaker
Thankyou
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