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Doctor insights on: The Valves In The Heart

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Dr. Darrin Cunningham
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Valve (Definition)

A valve is a structure that regulates the direction of flow. The heart is a special kind of pump. It moves blood by squeezing and relaxing. There are 4 chambers and each chamber has a valve. This keeps blood from moving backwards when the heart squeezes. When a chamber squeezes it lets the blood move forward but when the chamber is relaxed it prevents the blood from ...Read more


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What are the two AV valves in the heart? Where are they located?

What are the two AV valves in the heart? Where are they located?

The atrioventricular: valves are the mitral and tricuspid valves. true to their names, they are between the atria and ventricles. the mitral valve is between the left atrium and the left ventricle, and the tricuspid valve is between the right atrium and the right ventricle. ...Read more

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Where are the tricuspid and bicuspid valves in the heart?

Where are the tricuspid and bicuspid valves in the heart?

Atria/venticle: The tricuspid valve is located between the right atria and right ventricle. It is the largest of the 4 valves of the heart. The bicuspid valve is located between the left atria and left ventricle. It is also known as the mitral valve. ...Read more

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What is the difference between someone with 3 valves in their heart and someone with a normal heart?

What is the difference between someone with 3 valves in their heart and someone with a normal heart?

See below: are you referring to tricuspid atresia? This is a cyanotic congenital heart disease where the tricuspid valve is absent (technically three valves present), these patients often times have a single ventricle and require a complex surgery to address it. Normal individuals have 4 main valves - tricuspid, mitral, pulmonic and aortic valves. ...Read more

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What is the function of the bicuspid valve in the heart?

What is the function of the bicuspid valve in the heart?

You mean malfunction: The aortic valve has 3 parts or leaflets. When its called bicuspid it has only 2 leaflets. This can be congenital or aquired. If two of the cusps fuse over time is called functional bicuspid vs congenital. Either way it creates an un natural flow across the valve and over time damage the valve. Most often the valve will need replace depending on age diagnosed.Most congen bicuspids will need repla. ...Read more

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When is the mitral valve in the heart closed?

When is the mitral valve in the heart closed?

Mitral valve: During ventricular systole the rising pressure in the left ventricle causes the mitral valve to close. ...Read more

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How bad is it if all the valves in your heart leak?

Leak: If all the heart valves leak significant volumes of blood, the heart will have an overload and heart failure may result. ...Read more

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Which valve in the heart works harder, the bicuspid or tricuspid ?

Which valve in the heart works harder, the bicuspid or tricuspid ?

The same: There is no difference in the amount of work they do -it's just that one has 2 leaflets and the other 3. ...Read more

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Is torn chordae tendineae of the mital valve iconsidered a heart attack?

Is torn chordae tendineae  of the mital valve iconsidered a heart attack?

No: Although a torn chordae tendinae can result from a heart attack, the two are not synonymous. Tearing of the chordae (part of the mitral valve apparatus) is more often related to other structural diseases of the mitral valve, like mitral valve prolapse and endocarditis (infection of the mitral valve) or chest trauma in some situations. Heart attack only rarely causes a torn chordae. ...Read more