Which part or parts of the PQRST wave records the lower parts of the heart squeezing together?

(1 point)
Responses

R and S waves
R and S waves

ST, T, and U waves
ST, T, and U waves

QRS complex
QRS complex

P wave

1 answer

The correct answer is QRS complex.

The QRS complex represents the electrical activity associated with ventricular depolarization, which occurs when the lower parts of the heart (the ventricles) contract (or squeeze together).