wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

‘QRS' complex in an ECG represents:

A
Auricular depolarization
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Ventricular depolarization
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Auricular repolarization
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Ventricular repolarization
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Ventricular depolarization
An electrocardiograph or ECG is a test used to measure the electrical activity of the heart. The test takes only about a few minutes and is devoid of any pain.

The electrical activity of the heart causes the heart muscles to contract that results in the pumping of the heart. The ECG is in the form of spikes and dips known as waves. The wave pattern helps in assessing the rate and rhythm of our heartbeat.

The P wave is the electrical excitation of the atria, or depolarization, initiating atrial contraction.

The QRS complex is the depolarization of ventricles, initiating ventricular contraction. Marking the beginning of the systole.

T wave means the return of ventricles to the normal state (repolarization), marking the end of the systole.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Conducting System of the Heart
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon