A Diagram of the Heart

The right auricle and ventricle opened, and a part of their right and anterior walls removed, so as to show their interior. Labels: 1, superior vena cava; 2, inferior vena cava; 2’, heptic veins cut short; 3, right auricle; 3’, placed in the fossa ovalis, below which is the Eustachian valve; 3", is placed close to the aperture of the coronary adjacent walls of the auricle and ventricle has been preserved; 4, cavity of the right carnea or musculus papillaris; 5, 5’, 5", tricuspid valve; 6, placed in the interior of the pulmonary artery, a part of the anterior wall of that vessel having been removed, and a narrow portion of it preserved at its commencement, where the semilunar valves are attached; 7, concavity of the aortic arch close to the cord of the ductus arteriosus; 8, ascending part or sinus of the arch covered at its commencement by the auricular arteries; 10, appendix of the left auricle; 11, the outside of the left ventricle, the lower figure near the apex.

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