1 — Internal thoracic artery; Internal thoracic veins, perforating branches; 2 — Pectoralis major; 3 — Cephalic vein; 4 — Transverse cervical veins; 5 — Superficial cervical vein; 6 — External jugular vein; 7 — Superior thyroid vein; 8 — Internal jugular vein; 9 — Facial vein; 10 — Occipital vein; 11 — Stylohyoid; 12 — Retromandibular vein; 13 — Submandibular gland; 14 — Submental vein; 15 — Anterior jugular vein; 16 — Digastric, anterior belly; 17 — Mylohyoid; 18 — Facial artery; 19 — Hypoglossal nerve [XII]; 20 — Laryngeal prominence; 21 — Sternocleidomastoid; 22 — Isthmus; 23 — Trapezius; 24 — Omohyoid; 25 — Thoraco-acromial vein; 26 — Axillary vein; 27 — Inferior thyroid vein
