Explain why the P wave is usually smaller than QRS complex wave on a normal ECG trace?

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Explain why the P wave is usually smaller than QRS complex wave on a normal ECG trace?

2007-10-16 00:03:51 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Medicine

1 answers

P wave reflects atrial contraction . Atria are smaller in size and take less time. So P waves are smaller and shorter.. So the wave is smaller. QRS reflects ventricular contraction. Ventricles are bigger in size and take longer time..

2007-10-16 00:38:18 · answer #1 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋