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Other Terms: Right atrioventricular valve, Valva tricuspidalis, Valva atrioventricularis dextra, Valva atrioventricularis dextra (Valva tricuspidalis), Valve atrio-ventriculaire droite
The tricuspid valve, also known as the right atrioventricular valve, is the valve between the right atrium and the right ventricle. The tricuspid valve is composed of three fibroserous segments attached to the margin of the right atrioventricular opening and partly to one another near their marginal connection with the opening. The remainder of their edges is free except for the attachments of the papillary muscles. The cusps of this valve are the marginal cusp, attached to the front, the septal cusp, to the back of the orifice, and the infundibular cusp, the largest and most movable, to the left edge between it and the opening of the pulmonary artery. Each cusp is thickened in its center and quite thin at its margin. The chordae tendineae are attached to the cusps of this valve at their central thickenings, and to their free margin. Because of this, the ventricular portions of the valves are rough and the atrial smooth.
Valva atrioventricularis dextra
Valva atrioventricularis dextra (Valva tricuspidalis)
Valve atrio-ventriculaire droite