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MHT CET Biology question

BiologyBody Fluids and CirculationMHT CET

P – wave of ECG indicates (i) Depolarization of atrial muscles (ii) Activation of SA-node (iii) Spread of excitation from SA node to AV node (iv) Repolarization of atria and depolarization of ventricles [BHU 2007]

Answer: (B)

Solution

The P wave represents depolarisation of the atria following activation of the SA node; statement (iv) is wrong because

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Question ID VK-077892