1 — Trachea; 2 — Cricothyroid; 3 — Superior thyroid artery, anterior glandular branch; 4 — Thyrohyoid membrane; 5 — Hyoid bone; 6 — Geniohyoid; 7 — Superior thyroid artery; 8 — Lingual artery; 9 — Sublingual artery; 10 — Deep lingual artery; 11 — Hyoglossus; 12 — Lingual nerve; 13 — Sublingual nerve; 14 — Genioglossus; 15 — Sublingual gland; 16 — Sublingual artery; Sublingual vein; 17 — Deep lingual vein; 18 — Styloglossus; 19 — Hypoglossal nerve [XII]; 20 — Lingual vein; 21 — Hyoglossus; 22 — External carotid artery; 23 — Carotid bifurcation; 24 — Superior laryngeal nerve, internal branch; 25 — Superior laryngeal artery; 26 — Superior thyroid artery; 27 — Common carotid artery; 28 — Thyroid cartilage; 29 — Thyroid gland, left lobe; 30 — Isthmus; 31 — Dorsal lingual branches; 32 — Suprahyoid branch
