QRS complex P wave T wave The first peak of the ECG is called the and is caused by atrial depolarization. (Afterwards, the atria contract.) The large spike is called the which is when the ventricles depolarize. (Afterwards, the ventricles contract.) The final peak is the ,which occurs when the ventricles repolarize. (Afterwards, the ventricles relax.)

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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QRS complex
P wave
T wave
The first peak of the ECG is called the
and is caused by atrial depolarization. (Afterwards, the atria contract.) The large spike is called the
which is when the ventricles depolarize. (Afterwards, the ventricles contract.) The final peak is the
,which occurs when the ventricles repolarize. (Afterwards, the
ventricles relax.)
Transcribed Image Text:QRS complex P wave T wave The first peak of the ECG is called the and is caused by atrial depolarization. (Afterwards, the atria contract.) The large spike is called the which is when the ventricles depolarize. (Afterwards, the ventricles contract.) The final peak is the ,which occurs when the ventricles repolarize. (Afterwards, the ventricles relax.)
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