I — Omohyoid, inferior belly; 2 — Scalenus posterior; Posterior scalene; 3 — Scalenus medius; Middle scalene; 4 — Scalenus anterior; Anterior scalene; 5 — Levator scapulae; 6 — Splenius capitis; 7 — Sternocleidomastoid; 8 — Hyoglossus; 9 — Parotid gland; 10 — Stylohyoid;
II — Digastric, posterior belly; 12 — Mylohyoid; 13 — Digastric, anterior belly; 14 — Hyoid bone; 15 — Thyrohyoid; 16 — Omohyoid, superior
belly; 17 — Sternohyoid