Question

61


P-wave of ECG occurs before the
A
Onset of ventricular ejection
B
End of arterial contraction
C
Beginning of atrial contraction
D
None of the above

Answer 1

p wave represents the joint diastole i.e when the atria and the ventricle are relaxed...the qrs wave represents the atrial contraction.So the p wave deinitely occurs before the atrial contaction.
Hence, answer is

C. beginning of atrial contraction

Answer 2

P waves of ECG occurs before the,beginning of atrial contraction...

Hope this helps you...
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