Doctor insights on:
What Heart Valves Are Anchored By Chordae Tendineae
The mitral &: Tricuspid.Get a more detailed answer ›
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
Papillary muscles: They are papillary muscles.Get a more detailed answer ›
Chordae: The mitral and tricuspid have chordae. The mitral ones are those we discuss most. ...Read more
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
Tissue valves: The size of pig and cow valves approximates the size of human valves. They are chemically treated to decrease the likelihood of tissue rejection. The porcine valves are more commonly used than the bovine. ...Read more
Different structure: The aortic and pulmonic valves are the ventricular outlet valves. Their shape is different form the ventricular inlet valves. The are a more solid structure with 3 leaflets that close after systole. If you look at google images of the aortic valve and the mitral valve you can see the difference. ...Read more
4 locations: The first valve blood crosses is the tricuspid valve between the right atrium and right ventricle. Blood then flows across the pulmonic valve between the right ventricle and the lungs on its way to the lungs where it picks up oxygen and discards waste. It returns to the left atrium and crosses the mitral valve between the left atrium and left ventricle. It then exits across the aortic valve. ...Read moreSee 1 more doctor answer
Tissue valves: We use beef, pig and human aortic valves as replacements in humans. Those three most closely simulate the size of the human valves. ...Read more
Can you explain how the heart valves opening/closing is synchronized with the heart's pacemaker firing?
One causes the other: The pacemaker of the heart initiates an electrical impulse that spreads across the upper chambers and causes them to contract. Contraction of the atria pushes the atrioventricular valves open. Subsequently, the electrical impulse is transmitted to the lower chambers of the heart. The contraction of the ventricles opens the semilunar valves; at the same time the atrioventricular valves close. ...Read moreSee 1 more doctor answer
Heart valves: The mitral and aortic valves are the most often replaced valves, but sometimes the mitral valve can be repaired, but not the aortic valve. So probably the aortic is the most replaced. It is much less common that the pulmonary or tricuspid valve be replaced. ...Read more
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- Which heart valves are anchored by chordae tendinae to the heart muscle
- Mitral valve chordae tendineae
- Why does rupture of the chordae tendineae lead to valve dysfuction?
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- Valves chordae
- Enlarged muscles in ventricles attached to chordae tendineae
- What could happen if the chordae tendinae ruptured in right valve area?
- There is a thick mitral valve chordae tendinae
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