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Doctor insights on: What Are The Fibrous Strands Connecting The Av Valves To The Myocardium Called

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Dr. Tim Conrad
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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 holds the valves to the wall of veins?

What holds the valves to the wall of veins?

Made that way : The inner lining of veins forms a continuous covering over the valves and the valve is attached all the way around the inside of the vein--360 degrees. In a real sense, the valves are actually part of the wall. Valves open and close as a passive result of blood going through the valve opening. Their movement responds to blood flow rather than causing it. ...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 are heart defects where the aorta arises from the right ventricle?

What are heart defects where the aorta arises from the right ventricle?

Two : Transposition of the great vessels, tetralogy of Fallot. Likely there are more and hopefully a cardiologist will enlighten us! ...Read more

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Could you tell me what is the function of hyaline cartilage rings in the walls of certain structures of the respiratory tract?

Could you tell me what is the function of hyaline cartilage rings in the walls of certain structures of the respiratory tract?

Structural support: Act as structural support to keep the bronchus open when creating negative pressure on inspiration, and stable on expiration with increase positive pressure. ...Read more

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What are the similarities between the heart valve and the epiglottis?

What are the similarities between the heart valve and the epiglottis?

Valve: Well... A heart valve is like a check valve, directing blood in one direction and preventing back flow. The epiglottis prevents food from entering the main bronchus (air pipe) when you swallow and as such can be seen as performing a valve-like function. ...Read more

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What are the treatments for fibers in heart valve called?

What are the treatments for fibers in heart valve called?

Chordau tendiniae: The "fibers" are called "chordae" and are similar in function to parachute chords. They prevent the valve leaflets to prolapse (tricuspid and mitral), holding them back just like a parachute chord prevents the parachute from flipping up. If these chords break, the valve will leak. Surgical fixes include annuloplasty (narrowing the valve ring), repairing the chordae, and valve replacement. ...Read more

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What are the structures in the pericardium?

What are the structures in the pericardium?

2 layers: The pericardium is a 'sack' around the heart. Technically the pericardium has 2 layers . The visceral layer that lies against the heart and the parietal layer that is on the out side of the heart. There is a small amt of fluid in between. This protects the heart and acts as a physical barrier.Also acts as a buffer for the heart and insulates it. It can become inflamed and is called pericarditis. ...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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