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The ekg wave or deflection that records atrial depolarization is the?
Wiki User
∙ 12y ago
The deflection/wave is the P wave.
When the SA node triggers a cardiac impulse, the atrial fibers depolarize, producing an electrical change. The pen moves, and at the end of the electrical changem returns to the base position. The first pen movement produces the P wave.
SA node (sinoatrial node/sinuatrial node): A small elongated mass of specialized cardiac muscle tissue just beneath the epicardium. It is in the right atrium near the opening of the superior vena cava, and its fibers are continuous with those of the atrial syncytium.
P wave: The brief zero voltage period in which the impulse is traveling within the AV node and the Bundle of His.
**ECG/EKG or electrocardiogram, is a recording of the electrical changes in the myocardium during a cardiac cycle.
Source:
Hole's Human Anatomy & Physiology. Twelfth Edition. David Shier, Jackie Butler, and Ricki Lewis. Mc Graw Hill - Higher Education. Pages 568-569
Wiki User
∙ 12y ago
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What part of the ECG records atrial contraction?
ECG records electrical activity and not mechanical, hence it has nothing to do with contraction. But P wave represents atrial depolarization.
Does the p wave in an ekg indicate atrial depolarization?
No it does not. Atrial repolarization is generally not visible on the telemetry strip because it happens at the same time as ventricular depolarization (QRS complex). The P wave represents atrial DEpolarization (and atrial systole). Atrial repolarization happens during atrial diastole (and ventricular systole).
The portion of the ECG that corresponds to atrial depolarization is the?
The portion of the ECG that corresponds to atrial depolarization is called the P wave. The P wave is the first wave on the ECG.
What part of an ecg do atria contract?
Atrial depolarization occurs at the P wave. The atrial contraction occurs at the peak of the wave at the influx of calcium ions to prolong depolarization.
What does P wave forms reflect?
A P wave reflects atrial depolarization.
The p wave of a normal electrocardiogram indicates?
Atrial Depolarization.
What part of the ECG complex represents the atrial depolarization?
The P wave.
What wave form does Right and left atrial depolarization produce?
Qrs complex
In an ecg pattern the p wave is caused by what?
depolarization of atrial muscle fibers
The p wave of the electrocardiogram is a signal from?
The P wave on ECG corresponds to electrical depolarization of the atria. It should be positive in lead II and negative in aVR when the P wave originates in the sinoatrial node.
To evaluate a clients atrial depolarization the nurse observes witch part of an EKG?
On the EKG readout the P Wave represents atrial depolarization. For a healthy person it should be smooth, round and upright, and preceding the QRS complex.
Why is the p-wave caused by atrial contraction?
The p-wave is the atrial depolarization or when the atrium contract to pump blood to the ventricles. The "p-wave" is showing you how the electic current changes while the heart is doing that specific action.
