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Diagram of the interior of the heart. Labels: A, aorta; PA, pulmonary artery; VCI and VCS, vena cava inferior and vena cava superior; T, tricuspid, and M, mitral valve. The other letters same as in preceding figure.

Interior of the Heart

Diagram of the interior of the heart. Labels: A, aorta; PA, pulmonary artery; VCI and VCS, vena cava…

Left side of heart. Labels: 1, cavity of left auricle (atrium); 3, opening of right pulmonary veins; 5, left pulmonary veins; 5, left pulmonary veins; 6, auriculo-ventricular opening; 8, wall of left ventricle; 9, cavity of left ventricle; a, mitral valve (its flaps are attached by the chordae tendineae to the muscular pillars (b,b); d, arch of aorta); e, pulmonary artery.

Left Side of Heart

Left side of heart. Labels: 1, cavity of left auricle (atrium); 3, opening of right pulmonary veins;…

Right side of heart. Labels: A, cavity of right ventricle; B, superior vena cava; C, inferior vena cava; a, wall of right ventricle; b, c, columnae carneae; d, pulmonary vein; e, f, tricuspid valve; m, semilunar valve; o, wall of left ventricle; p, q, v, ascending aorta, arch and descending aorta.

Right Side of Heart

Right side of heart. Labels: A, cavity of right ventricle; B, superior vena cava; C, inferior vena cava;…