When are the sounds lubb and dubb produced rspectively during heart beat ?
Answers
Answered by
0
Answer:
Normally, two distinct sounds are heard through the stethoscope: a low, slightly prolonged “lub” (first sound) occurring at the beginning of ventricular contraction, or systole, and produced by closure of the mitral and tricuspid valves, and a sharper, higher-pitched “dup” (second sound), caused by closure of aortic ...
hope it helps you.
mark as brainlist answer.
Similar questions