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  2. Heart valve - Wikipedia

    en.wikipedia.org/wiki/Heart_valve

    The atrioventricular valves are the mitral valve, and the tricuspid valve, ... This is commonly found on previously undamaged valves. [12]

  3. Mitral valve - Wikipedia

    en.wikipedia.org/wiki/Mitral_valve

    The mitral valve and the tricuspid valve are known as the atrioventricular valves because they lie between the atria and the ventricles. [1] In normal conditions, blood flows through an open mitral valve during diastole with contraction of the left atrium, and the mitral valve closes during systole with contraction of the left ventricle. The ...

  4. Atrioventricular node - Wikipedia

    en.wikipedia.org/wiki/Atrioventricular_node

    The atrioventricular node or AV node ... It is located at the center of Koch's triangle—a triangle enclosed by the septal leaflet of the tricuspid valve, ...

  5. Papillary muscle - Wikipedia

    en.wikipedia.org/wiki/Papillary_muscle

    The papillary muscles are muscles located in the ventricles of the heart. They attach to the cusps of the atrioventricular valves (also known as the mitral and tricuspid valves) via the chordae tendineae and contract to prevent inversion or prolapse of these valves on systole (or ventricular contraction).

  6. Tricuspid valve - Wikipedia

    en.wikipedia.org/wiki/Tricuspid_valve

    The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, at the superior portion of the right ventricle.The function of the valve is to allow blood to flow from the right atrium to the right ventricle during diastole, and to close to prevent backflow (regurgitation) from the right ventricle into the right atrium during right ventricular ...

  7. Atrioventricular canal - Wikipedia

    en.wikipedia.org/wiki/Atrioventricular_canal

    The mitral valve and tricuspid valve are formed by the proper division of an early common valve being separated into two. [5] Atrioventricular canal defect may be divided into partial or complete forms. In the partial form, openings between the left and right atria and improper formation of the mitral valve exist.

  8. Cardiac skeleton - Wikipedia

    en.wikipedia.org/wiki/Cardiac_skeleton

    The atrioventricular rings serve for the attachment of the muscular fibers of the atria and ventricles, and for the attachment of the bicuspid and tricuspid valves. [3] The left atrioventricular ring is closely connected, by its right margin, with the aortic arterial ring; between these and the right atrioventricular ring is a triangular mass ...

  9. Anatomy of the human heart - Wikipedia

    en.wikipedia.org/wiki/Anatomy_of_the_human_heart

    There are four major valves in the heart, two atrioventricular valves (connecting one atrium to a ventricle) and two arterial (or semilunar) valves guarding the outflow of blood from the human heart. Each atrioventricular valve (tricuspid and mitral valves) consists of the leaflets, the annulus, the tendinous cords, the papillary muscles, and ...