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WB JEE Medical WB JEE Medical Solved Paper-2013

  • question_answer
    The diagram given here is the standard EGG of a normal person. The P-wave represents the

    A)  contraction of both the atria

    B)  initiation of the ventricular contraction

    C)  beginning of the systole

    D)  end of systole

    Correct Answer: A

    Solution :

      In  ECG,  P-wave  represents the depolarisation of atria, which leads to the contraction of both atria. T-wave represents the return of ventricles from excited to normal state. The QRS complex represents the depolarisation of the ventricles, which initiates ventricular contraction. The contraction starts shortly after Q and marks the beginning of systole.


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