1 — Pulmonary trunk; 2 — Middle lobar artery; 3 — Right pulmonary artery; 4 — Brachiocephalic trunk; 5 — Left common carotid artery; 6 — Left subclavian artery; 7 — Arch of aorta; Aortic arch; 8 — Left pulmonary artery; 9 — Ligamentum arteriosum (Ductus arteriosus); 10 — Right superior pulmonary vein; 11 — Right inferior pulmonary vein; 12 — Left superior pulmonary vein; 13 — Left inferior pulmonary
vein