1 — Sternocleidomastoid; 2 — Supraclavicular nerves; 3 — Transverse cervical nerve; 4 — Great auricular nerve; 5 — External jugular vein; 6 — Cervical fascia, investing layer; superficial layer; 7 — Parotid gland; 8 — Facial nerve [VII], cervical branch; 9 — Mandible; 10 — Platysma;
11 — Anterior jugular vein; 12 — Cervical fascia, pretracheal layer; 13 — Jugular venous arch; 14 — Superior thyroid artery; 15 — Right common carotid artery; 16 — Superior laryngeal nerve, external branch; 17 — Superior laryngeal artery; 18 — Internal jugular vein; 19 — Superior laryngeal nerve, internal branch; 20 — Hypoglossal nerve [XII]; 21 — Thyrohyoid branch; 22 — Thyroid cartilage; 23 — Median thyrohyoid
ligament; 24 — Thyrohyoid; 25 — Omohyoid; 26 — Cricothyroid; 27 — Sternothyroid; 28 — Sternohyoid
