1 — Anterior interventricular sulcus; 2 — Apex of heart; 3 — Pericardium; 4 — Right auricle; 5 — Right ventricle; 6 — Diaphragm; 7 — Ascending aorta; 8 — Lobar and segmental bronchi; 9 — Superior vena cava; 10 — Pulmonary veins; 11 — Right pulmonary artery; 12 — Brachiocephalic vein; 13 — Right subclavian artery; 14 — Transverse cervical artery; 15 — Suprascapular artery; 16 — Ascending cervical artery, superficial branch; 17 — Inferior thyroid artery; 18 — Ascending cervical artery; 19 — Trachea; 20 — Middle cervical ganglion; 21 — Vagus nerve [X]; 22 — Thyroid cartilage; 23 — Median cricothyroid ligament; 24 — Cricothyroid; 25 — Left recurrent laryngeal nerve; 26 — Left phrenic nerve; 27 — Scalenus anterior; Anterior scalene; 28 — Left subclavian artery; 29 — Brachial plexus; 30 — Left common carotid artery; 31 — Arch of aorta; Aortic arch; 32 — Recurrent laryngeal nerve; 33 — Bifurcation of pulmonary trunk; 34 — Pulmonary trunk; 35 — Left auricle; 36 — Sinus
of pulmonary trunk; 37 — Conus arteriosus; Infundibulum; 38 — Left ventricle