Question

Which one of the components of ECG in human
is correctly interpreted below?
(a) Complex QRS- one complete pulse
(b) Peak T - initiation of total cardiac contraction
(c) Peak P and peak R together-systolic and
diastolic blood pressures
(d) Peak P- initiation of left atrial contraction only

Answer 1

Answer:

A

The QRS complex represents the electrical impulse as it spreads through the ventricles and indicates ventricular depolarization. The QRS complex starts just before ventricular contraction and is the complete pulse. ... Systole corresponds to contraction while diastole corresponds to relaxation..

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