File:EB1911 - Vascular System - Fig. 3.png

English: Fig. 3.—The Thoracic Viscera. In this diagram the lungs are turned to the side, and the pericardium removed to display the heart. a, upper, a′, lower lobe of left lung; b, upper, b′, middle, b″, lower lobe of right lung; c, trachea; d, arch of aorta; e, superior vena cava; f, pulmonary artery; g, left, and h, right auricle; k, right, and l, left ventricle; m, inferior vena cava; n, descending aorta; 1, innominate artery; 2, right, and 4, left common carotid artery; 3, right, and 5, left subclavian artery; 6, 6, right and left innominate vein; 7 and 9, left and right internal jugular veins; 8 and 10, left and right subclavian veins; 11, 12, 13, left pulmonary artery, bronchus and vein; 14, 15, 16, right pulmonary bronchus, artery and vein; 17 and 18, left and right coronary arteries.