Get the most out of your questions with IDNLearn.com's extensive resources. Join our platform to receive prompt and accurate responses from experienced professionals in various fields.

Why does the first heart sound occur after the qrs complex?.

Sagot :

Answer:

QRS represents ventricular depolarization. This depolarization initiates ventricular contraction which closes the mitral and tricuspid valves. It is the closure that is heard as the first heart sound.

Explanation: