1 — Heart, left ventricle; 2 — Heart, right ventricle; 3 — Inferior vena cava; 4 — Heart, right atrium; 5 — Ascending aorta; 6 — Superior vena cava; 7 — Brachiocephalic trunk; 8 — Right subclavian artery; 9 — Right common carotid artery; 10 — Right vertebral artery; 11 — Right internal carotid artery; 12 — Right external carotid artery; 13 — Left external carotid artery; 14 — Left internal carotid artery; 15 — Left vertebral artery; 16 — Left common carotid artery; 17 — Left subclavian artery; 18 — Arch of aorta; Aortic arch; 19 — Ligamentum arteriosum (Ductus arteriosus); 20 — Pulmonary
trunk; 21 — Heart, left atrium
