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More cells depolarize during this QRS complex(ventricular contraction). The reason is because the muscle mass of the atria is small compared with that of the ventricles. The ventricles have a larger muscle mass. Therfore the electrical impulses within the atria are shorter and are less. The ventricles are larger so there is a larger deflection of the ECG when the ventricles are depolarised this is called the QRS complex
What else can I help you with?
What is QRS in ECG?
The QRS complex on an ECG represents ventricular depolarisation. This wave should have the greatest amplitude.
Does the amplitude of the qrs complex change with the pulse amplitudes?
Yes, the QRS complex and the pulse wave are directly connected. The amplitude of these, combined with the first heart beat sound, make up systolic pressure.
What does the normal QRS complex measure?
does a normal qrs complex measures <.12
Is the T wave higher than the QRS complex in this ECG reading?
No, the T wave is not higher than the QRS complex in this ECG reading.
What does QRS complex represents?
The ventricles contracting.
When does a QRS complex occurs?
When ventricles depolarize
How is ventricular systole indicated on an EKG?
QRS complex
Complex that occurs as a result of depolarization of the ventricles?
QRS
How is the QRS complex described in atrial fibrillation?
In atrial fibrillation, the QRS complex is typically described as normal, but irregularly spaced due to the irregular heartbeat caused by the condition.
What part of an ECG represents ventricular depolarization?
Okay so an EKG show the electrical impulse that travels through the heart. What I mean is EKG don't show contraction. However the QRS complex represent ventricular depolarization, which signals ventricular contraction
What causes QRS complex to reverse?
left ventricular contraction
What does it mean when pacemaker spikes after qrs complex?
Atrial paced
