Body Fluids and CirculationHard

Question

Which one is the correct route through which pulse making impulse travels in the heart

Options

A.SA node → Purkinje fibres → Bundle of His → AV node → Heart muscles
B.AV node → SA node → Purkinje fibres → Bundle of His → Heart muscles
C.AV node → Bundle of His → SA node → Purkinje fibres → Heart muscles
D.SA node → AV node → Bundle of His → Purkinje fibres → Heart muscles 

Solution

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