Does the QRS complex represent ventricular diastole?
The QRS complex represents depolarization of the ventricles and is followed by ventricular contraction. The T wave represents the repolarization of the ventricles and marks the beginning of ventricular relaxation.
Is QRS ventricular systole?
The QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole). The Q and S waves are downward waves while the R wave, an upward wave, is the most prominent feature of an ECG.
What does the QRS complex represent quizlet?
The QRS complex represents ventricular depolarization (and atrial repolarization) or the journey through the electrical impulse from the Av-Node through the Purkinje network. (brought on by depolarization) and the beginning of electrical recovery (repolarization) is indicated by the S-T Segment.
What does the QRS wave and the T wave represent in an ECG?
The ST segment, which is also known as the ST interval, is the time between the end of the QRS complex and the start of the T wave. It reflects the period of zero potential between ventricular depolarization and repolarization.
What mechanical event follows the QRS complex?
QRS complex Represents ventricular depolarization which is followed by ventricular contraction.
Which wave in an electrocardiogram represents repolarization of the ventricles?
The T wave
The T wave represents ventricular repolarization. Generally, the T wave exhibits a positive deflection. The reason for this is that the last cells to depolarize in the ventricles are the first to repolarize.
What represents atrial repolarization?
Atrial and ventricular depolarization and repolarization are represented on the ECG as a series of waves: the P wave followed by the QRS complex and the T wave. The first deflection is the P wave associated with right and left atrial depolarization. Wave of atrial repolarization is invisible because of low amplitude.