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Cali Fornia Cali Fornia
wrote...
Posts: 5080
7 years ago
The P wave on an electrocardiogram (ECG) represents the depolarization of cells in the:
A) atrioventricular (AV) node.
B) sinoatrial (SA) node.
C) atria.
D) ventricles.
Textbook 
Human Anatomy & Physiology

Human Anatomy & Physiology


Edition: 1st
Author:
Read 171 times
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wrote...
7 years ago
C
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