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Doctor insights on: Why Do The Semilunar Valves Not Have Chordae Tendinae

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Why do the semilunar valves not have chordae tendinae?

Why do the semilunar valves not have chordae tendinae?

Not a good answer: You aren't going to like this: it's the way god made them. It is the intrinsic nature of the semilunar valves that they don't have chordae. (it's like asking, why do we have only 2 arms and not 3?). ...Read more

Dr. Darrin Cunningham
1 Doctor shared a insight

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 could happen if the chordae tendinae ruptured in right valve area?

What could happen if the chordae tendinae ruptured in right valve area?

Leaking valve: A rupture of the chordae tendinae of the mitral valve would result in severe leakage so that blood would flow backwards into the left atrium when the ventricle contracts. This would lead to shortness of breath. Fortunately, that is fairly rare. ...Read more

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Where is the chordae tendinae located?

Where is the chordae tendinae located?

Inside the ventricle: Chordae attach the valve to its papillary muscles. They are located on the ventricular side of the valve. ...Read more

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Where are the chordae tendinae located?

Where are the chordae tendinae located?

Below: The chordae tendinae are attached to the underside of the tricuspid (right side of the heart between the right atrium and right ventricle) and the mitral valve (left side of the heart between the left atrium and left ventricle). The attach much the same way that the chords of a parachute attach to the chute. The transmit the forces to pull open the valve and align it to close properly. ...Read more

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How does a chordae tendinae rupture?

How does a chordae tendinae rupture?

Usually wear & tear: Most cases of chordae tendinae rupture are because of degeneration after years of routine "wear and tear" leads to thickening and retraction. Rarely, it can occur due to infection (endocarditis), either acutely, or later if fibrosis develops and distorts the chorda. If a mitral valve is extremely "floppy", i.e. Mv prolapse, the flopping leaflet may pull the chorda hard enough to tear it. ...Read more

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Are the chordae tendinae located in both ventricles?

Yes: These serve as the support "strings" for the mitral & tricuspid valves. ...Read more

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What is the consequences of a ruptured chordae tendinae on the right ventrical?

Rupture chordea: It is like an anchor line to fix a tent onto the ground. Chordae rupture makes the valve lose its functional closing effect disrupting efficient pumping effect of the heart. ...Read more

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What are the enlarged muscles attached to chordae tendinae?

What are the enlarged muscles attached to chordae tendinae?

Papillary muscles: The papillary muscles are the muscular attachments of the chordae. These along with the valve leaflets and annuli are the mitral and tricuspid apparati. ...Read more

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What is the function of the chordae tendinae and papillary muscles?

Structure o valve: The valve leaflets are tethered by the chordae tendinae and the papilary muscles. The contraction of the papilary muscles then in turn cause movement of teh valve leaflets allowing opening. ...Read more

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What is the position of chordae tendinae?

They attach: Wall of right and left ventricles to tricuspid and mitral valves respectively. ...Read more

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What is the function of the chordae tendinae?

What is the function of the chordae tendinae?

Hold valve: Think of valve as a parachute, chordae tendinae are the "ropes" that anchor the valve leaflets or cusps to the heart muscle. Heart muscle contraction pulls on these cords to close the valve, when when heart relaxes then the valve opens. They are an important part of the heart valve apparatus. ...Read more

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What is the significance of nonfunctional or defective chordae tendinae?

What is the significance of nonfunctional or defective chordae tendinae?

Heart disease: The chordae are support structures for the mitral and tricuspid valves. When they are damaged, valvar insufficiency results. This can be severe enough to cause congestive heart failure either acute or chronic. ...Read more

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What would damage to the chordae tendinae in the left ventricle result in?

What would damage to the chordae tendinae in the left ventricle result in?

Mitral regurgitation: Damage to the chordae tendinae would result in problems with the closure and sealing of the mitral valve, and would lead to mitral regurgitation, or leaking, and possibly heart failure. ...Read more

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What is the result of damage to the chordae tendinae in the left ventricle?

What is the result of damage to the chordae tendinae in the left ventricle?

Heart disease: The chordae are support structures for the mitral and tricuspid valves. When they are damaged, valvar insufficiency results. This can be severe enough to cause congestive heart failure either acute or chronic. ...Read more

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What are the enlarged muscles in ventricles attached to chordae tendinae known as?

What are the enlarged muscles in ventricles attached to chordae tendinae known as?

Papillary muscle: The papillary muscles attach to the cusps of the atrioventricular valves (a.K.A. The mitral and tricuspid valves) via the chordae tendinae and contract to prevent inversion or prolapse of these valves. ...Read more

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What would be a long term effects of having a ruptured/redundant chordae tendinae? There is a chance I might have one. Could that have cause my stroke

What would be a long term effects of having a ruptured/redundant chordae tendinae? There is a chance I might have one. Could that have cause my stroke

Mitral valve: Problems are common, -, this could lead to other cardiac problems- dought relation to strokes, see cardiologist- my dad lived 40 years with it! - again, see cardiologist. ...Read more

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What structure does the chordae tendinae hold in place?

What structure does the chordae tendinae hold in place?

The valvular leaflet: The chordae hold the mitral and tricuspid valve leaflets like cords on a parachute. ...Read more

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I've been told I have loose chordae tendinae. Could this have been misinterperated on the echo and be something else?

Valve prolapse: Chordae tendenae in a structure that normally exist in every heart,
it is related to 2 of the valves of the heart: the mitral valve and the tricuspid valve
it is like a tendon that connect the undersurface of these valves to a strong muscle, in order to make sure the valve close in the proper line.
diseases of the chordae can make the valve either narrow or loose and leaking in the wrong direction ...Read more

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Can you tell me the range of tension that the chordae tendinae exerts during heart pumping?

Can you tell me the range of tension that the chordae tendinae exerts during heart pumping?

Yes: Good question but wondering why you asked. I had to look it up. The tension is higher with higher stroke volumes and appears to be 50-75 gms. ...Read more

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How is a damaged valve fixed?

Depends on problem: Sometimes a valve that doesn't open properly can be helped by opening with a balloon procedure. Sometimes a prosthesis can be passed into the heart via a catheter. Other problems can be fixed by surgically trimming or tightening the valve. In many cases, the best available treatment is to remove the valve and replace it with an artificial valve made from metal, plastic, fabric, or animal tissue. ...Read more

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What is the definition or description of: valve?

See below: 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 leaking back into it. ...Read more

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What is the function of the bicuspid valve?

What is the function of the bicuspid valve?

Mitral valve: Bicuspid means "two leaflets". The only "normal" bicuspid valve in the heart is the mitral valve. It sits between the left atrium and left ventricle. The valve opens to fill the left ventricle during diastole and closes when the ventricle contracts (systole).
The aortic valve is normally tricuspid but some people are born with an abnormal and bicuspid valve which may narrow later in life... ...Read more

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How dangerous is aoertic valve vegetation?

How dangerous is aoertic valve vegetation?

Depends: If it is a vegetation of bacterial endocarditis, it will kill you in a few weeks or months unless successfully treated, and may cause a stroke or something else bad in the meantime. If it is a clacified nodule that many middle-aged folks get, it is something to watch and that may be troublesome down the road. ...Read more

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Bicuspid arotic valve?

Your question?: You named a valve of the heart. The aortic valve is one of the four valves of the heart. It normally has three leaflets, although in 2% of the population it is found to congenitally have two leaflets. ...Read more

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What is a mitral valve?

What is a mitral valve?

One of 4 heart valve: The mitral valve is one of the 4 heart valves found in the heart. These valves keep blood moving one direction rather than back and forth as the heart contracts. The mitral valve is so named as it looks like the pope's hat (a mitre). The mitral valve separates the left atrium and the left ventricle. ...Read more

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Where is the mitral valve?

Where is the mitral valve?

Left side: Left side of the heart between top left chamber (atrium) and bottom left chamber (ventricle). ...Read more