Physiology Test Question

Considering the electrocardiogram (ECG) and the events of the cardiac cycle, the start of the P wave:

	(A) occurs before the start of atrial contraction (i.e., before atrial systole)
	(B) occurs during the contraction of the atria (i.e., during atrial systole)
	(C) occurs after the completion of atrial contraction (i.e., after atrial systole)

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Posted: Saturday, March 19, 2016

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