Tricuspid valves

Tricuspid valve is one of the four valves in the human heart, which prevents the backflow of blood from the right ventricle to the right atrium. It is named for its three cusps, or leaflets, that open and close to regulate blood flow.

Anatomy

The tricuspid valve is located between the right atrium and the right ventricle. It consists of three leaflets: the anterior, posterior, and septal. These leaflets are attached to the papillary muscles via the chordae tendineae, which prevent the valve from inverting.

Function

The primary function of the tricuspid valve is to prevent the backflow of blood from the right ventricle to the right atrium during ventricular contraction. When the right ventricle relaxes, the tricuspid valve opens to allow blood to flow from the right atrium to the right ventricle.

Clinical significance

Diseases of the tricuspid valve can lead to tricuspid regurgitation or tricuspid stenosis. Tricuspid regurgitation is a condition where the valve does not close properly, causing blood to leak back into the right atrium. Tricuspid stenosis is a condition where the valve does not open properly, restricting blood flow from the right atrium to the right ventricle.

See also

• Heart valve
• Mitral valve
• Pulmonary valve
• Aortic valve

References

Tricuspid valves Resources
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