1 — Recurrent laryngeal nerve; 2 — Oesophagus; 3 — Oesophageal branches; 4 — Inferior parathyroid gland; 5 — Inferior laryngeal nerve; 6 — Superior parathyroid gland; 7 — Pharyngeal plexus; 8 — Pharynx; 9 — Pharyngeal veins; 10 — External carotid artery; 11 — Soft palate; 12 — Tongue; 13 — Submandibular gland; 14 — Lingual artery; 15 — Superior thyroid artery; 16 — Internal carotid artery; 17 — Superior thyroid vein; 18 — Thyroid gland; 19 — Inferior thyroid vein; 20 — Inferior thyroid artery; 21 — Internal jugular vein; 22 — Common carotid artery;
23 — Trachea
