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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

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Dr. James Lin
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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