Question

why we are mark the QRS wave complex wave​

Answer 1

Answer:

A QRS Complex represents depolarization of the right and left ventricles. The pacemaker site of a normal QRS complex is the SA node or an ectopic pacemaker in the atria of AV junction. (The origin of the QRS is originally from the SA node, and then spreads down through the atria to the AV node, etc.)

Explanation:

Answer 2

Answer:

A QRS complex represents depolarization of the right and left ventricles.

Explanation:

I hope it can be helpful.