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Home > Glossary > P > P wave
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P wave
Definition:
The component of the electrocardiogram (ECG) that corresponds to the depolarization of atrial myocytes. Atrial depolarization precedes atrial contraction.

Related glossary terms/phrases:
QRS complex
T wave






Posted: Friday, January 9, 2015
Last updated: Friday, January 9, 2015
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