BSC2086L E.6 Heart Physiology, Pulse, Blood Pressure, and ECG
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Last updated 12:16 PM on 4/11/23
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5 Terms
1
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P wave
• A deflection wave of the ECG.
• Represents atrial depolarization before atrial contraction.
• Represents atrial depolarization before atrial contraction.
2
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QRS complex
• A deflection wave of the ECG.
• Represents ventricular depolarization before ventricular contraction.
• Obscures atrial repolarization.
• Represents ventricular depolarization before ventricular contraction.
• Obscures atrial repolarization.
3
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T wave
• A deflection wave of the ECG.
• Represents ventricular repolarization.
• Represents ventricular repolarization.
4
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PQ segment
• A segment of the ECG.
• Represents atrial contraction after atrial depolarization.
• Represents atrial contraction after atrial depolarization.
5
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ST segment
• A segment of the ECG.
• Represents ventricular contraction after ventricular depolarization.
• Represents ventricular contraction after ventricular depolarization.
Note 
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