when are the sounds lubb and dup produced respectively during heart beat?
Answers
Answered by
12
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
Answered by
10
Answer:
lub dub sound by heart during contraction and relaxation of heart.
hope it helps...!!
Similar questions