Q. 124.0( 1 Vote )

Which of the following correctly explains a phase/ event in cardiac cycle in a standard electrocardiogram?
A. QRS complex indicates atrial contraction.

B. QRS complex indicates ventricular contraction.

C. Time between S and T represents atrial systole.

D. P-wave indicates beginning of ventricular contraction.

Answer :

In a normal ECG following waves are present:


4. P Wave : It represents Atrial Depolarisation


5. QRS Wave : It represents Ventricular Depolarisation


6. T Wave: It represents Ventricular Repolarisation.

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