1 — Cricoid cartilage; 2 — Median cricothyroid ligament; 3 — Inferior constrictor; 4 — Thyroid cartilage; 5 — Transverse arytenoid; 6 — Median thyrohyoid ligament; 7 — Middle constrictor; 8 — Hyoid bone; 9 — Epiglottis; 10 — Superior constrictor; 11 — Hyo-epiglottic ligament; 12 — Pharyngeal tonsil; 13 — Soft palate; 14 — Maxilla; 15 — Incisor tooth [I]; 16 — Orbicularis oris, labial part; 17 — Genioglossus; 18 — Geniohyoid; 19 — Mylohyoid; 20 — Tracheal cartilages; 21 — Thyroid gland; 22 — Cervical fascia, investing layer; superficial layer
