MHT CET Biology question

Which one is the correct route through which pulse making impulse travels in the heart? [K CET 1994, CBSE PMT 2004, Kerala PMT 2005, WB-JEE 2007, WB-JEE 2011]

(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 musclesCorrect

Answer: (D)

Solution

The impulse runs SA node, AV node, bundle of His, Purkinje fibres and then the heart muscles;

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Question ID VK-077898