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The closing of the mitral and tricuspid valves results in the first heart sound. The closing of the aortic and pulmonic valves results in the second heart sound.
AV valve
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoThe semi-lunar valve causes the second heart sound. The sound is caused by the rush of blood into the aorta and the pressure of the blood on the valve causing it to 'slam' shut.
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Would turbulence of blood flow through the aortic valve give rise to the first heart sound?
No. The heart sounds are caused by the closure of heart valves. The first heart sound is caused by the closure of the AV valves (tricuspid and mitral). The second heart sound is the result of the closure of the aortic and pulmonic valve after the completion of systole. Turbulence of blood flow through the aortic valve would cause a murmur (an abnormal heart sound) during systole.
How is a heart beat produced?
The heart beat, also called heart sounds, is produced by the closing of the valves. The valves produce two sounds, known as lub-dub. The atrioventricular valve closing produces the first sound, or lub, and the semilunar valve closing produces the second sound, or dub.
When the blood passes to the right or left ventricle a valve will close between the atrium and ventricle what sound does it create?
The closure of the atrioventricular valves causes the first heart sound. We hear this as the "lub" of the "lub DUB" heart beat.
What do you call the pressure of the blood coming out from the heart?
The heart has two pumps inside of it and each has two chambers and two valves. The left side of the heart has the biggest chambers, and the one that pumps the blood to your body is called the left ventricle, When it contracts (squeezes together), the first valve closes shut (that's the "lupp" sound of a heart beat) and the contraction pushes the blood up past the second valve and into aorta, which is the main artery that distributes the blood to the regular arteries that carry the blood throughout the body. When the blood goes into the aorta, the second valve shuts so the blood doesn't go backwards into the heart and that is the "dubb" sound of a heart beat.
What is abnormal heart sound caused by improper closure of the heart?
murmurmurmurA murmur is a heart sound caused by turbulent blood flow resulting from an abnormal heart valve that either does not close appropriately or does not open normally.
What causes heart gurgling?
A bad valve can cause this sort of sound.
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.
When your heart pounds what is making the sound come from your heart?
The sound coming from your heart is the sound of the valves in the heart closing and the turbulence in the blood that results. In a normal healthy adult the first sound (or lub) is from the closing of the AV valve and the second sound (or dub) is from the closing of the semilunar valve.
What causes the sound heard in a heart murmur?
it's d closin nd openin of d heart valve
What long-term effects on the heart would result from a damaged valve?
This causes the heart to make a gurgling sound that is called a heart murmer.
The second heart sound occurs as a result of valve closure due to?
The second heart sound, also called S2, is a result of the closing of the aortic and pulmonic valves. The heart sounds are described as sounding like "lub-dub".
Would turbulence of blood flow through the aortic valve give rise to the first heart sound?
No. The heart sounds are caused by the closure of heart valves. The first heart sound is caused by the closure of the AV valves (tricuspid and mitral). The second heart sound is the result of the closure of the aortic and pulmonic valve after the completion of systole. Turbulence of blood flow through the aortic valve would cause a murmur (an abnormal heart sound) during systole.
How is a heart beat produced?
The heart beat, also called heart sounds, is produced by the closing of the valves. The valves produce two sounds, known as lub-dub. The atrioventricular valve closing produces the first sound, or lub, and the semilunar valve closing produces the second sound, or dub.
Loud heart murmur at the second intercostal space to the left side of the sternum?
loud heart murmur at the second intercostal space to the left side of the sternum? Why the murmur. It indicates a valve problem. If a valve does not close tightly, a swishing sound will be heard after that valve has (supposedly) closed, as the blood flows back through the partially open valve.
What valve sound heard at base of the heart?
The mitral, or bicuspid valve
Which valves produce the second heart sound when they snap shut?
Isovolumetric relaxation: In this phase the ventricles relax, the intraventricular pressure decreases. When this occurs, a pressure gradient reversal causes the aortic and pulmonary valves to abruptly close (aortic before pulmonary), causing the second heart sound. Isovolumetric relaxation: In this phase the ventricles relax, the intraventricular pressure decreases. When this occurs, a pressure gradient reversal causes the aortic and pulmonary valves to abruptly close (aortic before pulmonary), causing the second heart sound.
An abnormal heart sound that may alert clinicians to the presence of abnormal cardiac valve functioning?
with out lub dub or other abnormal abnormal heart sound
