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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2013
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Q)

The diagram given here is the standard ECG of a normal person. The P-wave respresents the <br>

https://clay6.com/mpaimg/496_a.jpg


( A ) Contraction of both the atria
( B ) Beginning of the systole
( C ) Initiation of the ventricular contraction
( D ) End of systole

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