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NEET AIPMT SOLVED PAPER SCREENING 2004

  • question_answer
    The cardiac pace maker in a patient fails to function normally. The doctors find that an artificial pace maker is to be grafted in him. It is likely that it will be grafted at the site of :                                      

    A) atrioventricular bundle                                 

    B) Purkinje system

    C)  sinuatrial node                                                

    D) atrioventricular node

    Correct Answer: C

    Solution :

    The pace maker creates the rhythmical impulse normally made by SA (sinuatrial) node. Hence, it is implanted at the site of SA node to mimic the action and to regulate the heart beat. SA node is found in the upper part of die right atrium of the heart. It is a specialized bundle of neurons (nerve cells).


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