Question

If SA node get complained what happens?

Answer 1

Although the SA node is the natural pacemaker causing the heart to beat at a rate of 60-100 bpm normally, if this fails the others can take up this work usually the AV node then the Purkinje system and Bundle branches. ... The SA nodes beats the fastest followed by the others as said.

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Answer 2

Although the SA node is the natural pacemaker causing the heart to beat at a rate of 60-100 bpm normally, if this fails the others can take up this work usually the AV node then the Purkinje system and Bundle branches. ... The SA nodes beats the fastest followed by the others as said