Rub Rub suggestion is from an Islamic site to prove that it calls for "Rab" another word for Allah or God in Arabic language.
Please don't be fooled as no scientific study has yet proved this, it's only a Propaganda to attract people towards Islam religion.
By the way, I'm muslim, but don't believe these things as they are based on false allegations believing it is also a sins.............. why do we need such craps? there are many scientifically proven things in Holy Quran, is'nt that enough?
Thankyou
ventricular systole causes lubb and atrial systole causes dubb
Dub
dub
Lub-Dup. (Also lub-dub)
lub dub
Lub dub
Heart sounds are noises generated by the beating heart from the flow of blood through it. Thump, boom can be used to describe it. Lub and Dub are also used. There are other sound words that suggest problems with the hearbeat as well.
lub dub lub is when the av valves close and dub is when the semi lunar valves close
there are 2 sounds the heart makes. "lub-dub" the first ("lub") is when the atrioventricular valves sclose the second ("dub") is when the semilunar valves close
lub-dub. ^_^ found that on ask.com fyi
The closing of the mitral and tricuspid valves produces the S1 sound, followed by the closing of the aortic and pulmonic valves, which produce the S2 sound. In sequence, it sounds like "lub-DUB, lub-DUB, lub-DUB".
lub dub lub dub
The difference between lub and dub (The heart sounds S1 and S2 of a heartbeat) is that the lub occurs when atrioventricular valves close, and dub occurs when the aortic and pulmonary valves close (valves leading out of the heart from the left and right ventricles).
"Lub dub" is the sound the human heart makes as blood passes through it.
The 'lub' is the S1 sound. It occurs due to normal closure of the mitral and tricuspid (atrioventricular) valves. With these valves closed, systole commences and blood is actively squeezed from the ventricles. The second sound is the 'dub' or S2 sound. It occurs as the aortic (to LV) and pulmonary (to RV) valves close to prevent backflow from the blood ejected from the ventricles and marks the beginning of diastole (or filling) of the heart.