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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.
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∙ 11y 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.
Which wave length is larger atrial contraction or ventricular contraction?
the ventricular contraction wave is larger
Which wave is larger the one for atrial contraction or the one for ventricular contraction?
Ventricular contraction wave is larger
Caused by irregular contractions of the atrial myocardium?
Atrial fibrillation
Is systolic pressure where the ventricls are relaxing?
Relaxation = Diastole Contraction of the atria=Atrial systole Contraction of the ventricles = Ventricular systole
During atrial systole 70 percent of ventricular filling occurs?
No. Most (~70%) of ventricular filling occurs passively, without atrial contraction.
What would happen if atrial contraction occurred late?
There will be an overriding of the atria or overloading of the heart.
What happens to the volume of blood in the ventricle during the period of isovolumetric contraction?
Both ventricular contraction and atrial diastole take place.
How does multifocal atrial tachycardia progress?
Atrial fibrillation can be caused by the multifocal atrial tachycardia progression. The multifocal atrial tachycardia, mostly, progress and presents itself as other forms of atrial tachycardia, including but not limited to, tachycardia-induced cardiomyopathy.
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 would happen if atrial contraction occurred early?
Nothing significant happens... intensity of S1 might decrease
What happens with atrial flutter?
Atrial flutter-- Rapid, inefficient contraction of the upper chamber of the heart.
