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Which of the following correctly explain...

Which of the following correctly explains a phase/event in cardiac cycle in a standard electrocardiogram ?

A

QRS complex indicates atrial contraction

B

QRS complex indicates ventricular contraction

C

Time between S and T represents atrial systole

D

P-wave indicates beginning og ventricular contraction

Text Solution

Verified by Experts

The correct Answer is:
B
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