1 — Muscular layer; Muscular coat, circular layer; 2 — Muscular layer; Muscular coat, longitudinal layer; 3 — Intermuscular triangle; 4 — Recurrent laryngeal nerve; 5 — Cricoid cartilage; 6 — Inferior constrictor; 7 — Thyroid cartilage; 8 — Oblique arytenoid; 9 — Thyrohyoid membrane; 10 — Epiglottic cartilage; 11 — Superior laryngeal artery, vein and nerve; 12 — Cuneiform tubercle; 13 — Corniculate tubercle; 14 — Transverse arytenoid; 15 — Posterior crico-arytenoid
