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The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From their upper ends are seen the chordae tendinae proceeding to the edges of the flaps of the mitral valve. The opening into the uricle lies between tehse flaps. At the beginning of the aorta are seen ints three pouch-like semilunar valves.

Aorta

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From…

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;…

Section of heart at level of valves. Labels: P, pulmonary artery, with flaps of semilunar valve open; A, aorta, with flaps of semilunar valve open; M, closed mitral valve; T, closed tricuspid valve.

Section of Heart Showing Valves

Section of heart at level of valves. Labels: P, pulmonary artery, with flaps of semilunar valve open;…

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From their upper ends are seen the cordoe tendineoe proceeding to the edges of the flaps of the mitral valve. The opening into the auricle lies between these flaps. At the beginning of the aorta are seen its three pouch-like semilunar valves.

Ventricle and Aorta Laid Open

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From…