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The "lub-dub" sounds of the heart, heard with a stethoscope, are caused by the closure of the heart valves. The "lub" (first sound) occurs when the atrioventricular valves (mitral and tricuspid) close during ventricular contraction (systole). The "dub" (second sound) happens when the semilunar valves (aortic and pulmonary) close at the end of ventricular contraction (diastole). These sounds reflect the rhythmic pumping action of the heart and the movement of blood through the cardiac cycle.
What else can I help you with?
What two sound are audible when the heart is functioning?
lub and a dub (or dup)
What sound does a human heart make?
lup - dup (when the valves between the atria and venticles close, the "lup" sound is made. When the valves between the venticles and blood vessels close, the "dup" sound is made).
What is the lub-dup sound of your heartbe?
Ihe sound comes from the vavles in the heart opening and closing to circulate the blood.
What parts of the heart make the beating sound?
The first heart sound, the so called "lub", comes from the closure of the atrioventricular valve. The second heart sound, the "dup", comes from the closure of the semilunar valve.
What does a heart sound like in words?
it is actually known as "lubb" and "dup"this is given in bio text books too...
Does dup die in wild at heart?
no
The lub-dup* heart sounds are produced by.?
the closing of the atrioventricular valves ("lub) and the closing of the semilunar valves ("dup*).
What causes the lub-dup heart sounds that are heard with the stethoscope?
The cardiac sounds (typically described as lub-dub) are caused by the closing of the cardiac valves. The first sound (lub) is caused by the closing of the mitral and tricuspid valves and the second (dub) is caused by the closing of the aortic and pulmonic valves.
What sound a healthy heart make?
A normal/healthy heart makes two sounds.The first is a low,slightly prolonged ''lub''.The second is a shorter high-pitched ''dup''.......by rapael igunbor
What causes the lub and dup of the heart?
The lub is caused by the closing of the AV valves. The dup is caused by the semilunar valves closing at the end of systole.
What sounds does a heart make?
Lub-Dup. (Also lub-dub)
What are important of lup and dup?
Lup and dup, or lupp and dupp, and sometimes also called lubb and dupp are the heart sounds. They are produced when the two different types of valves in the heart close, the atrioventriculars and the semilunars.
