Which one generates heart beat? 1.Purkinje fibres 2.cardiac branch of vagus nerve 3.SA node 4.AV node

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Which one generates heart beat? 1.Purkinje fibres 2.cardiac branch of vagus nerve 3.SA node 4.AV node

Ishhika Ghosh 16th May, 2020

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ADITYA KUMAR 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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