Which of the following correctly explains a phase/event in the 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 the beginning of ventricular contraction.

Which of the following correctly explains a phase/event in the cardiac

1.	Which of the following correctly explains a phase/event in the 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 the beginning of ventricular contraction.
Answer» Which of the following correctly explains a phase/event in the 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 the beginning of ventricular contraction.