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please explain the functions of S.A node and A.V node

Asked by tkguha 23rd May 2016, 10:58 PM
Answered by Expert
Answer:

The action potential required for the rhythmic contractile activity of the heart is generated at the SA node. When the impulse is initiated, it results in the atrial systole.

AV node received the impulse from the SA node. When the impulse reaches at the AV node, the ventricular systole is initiated.

Answered by Expert 24th May 2016, 10:37 AM
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