1 — Cricotracheal ligament; 2 — Arch of cricoid cartilage; 3 — Median cricothyroid ligament; 4 — Superior thyroid notch; 5 — Thyroid cartilage, right lamina; 6 — Median thyrohyoid ligament; 7 — Thyrohyoid membrane; 8 — Lateral thyrohyoid ligament; 9 — Hyoid bone, lesser horn; 10 — Hyoid bone, greater horn; 11 — Epiglottic cartilage; 12 — Triticeal cartilage; 13 — Thyroid cartilage, superior horn; 14 — Thyroid cartilage, inferior horn; 15 — Capsule of cricothyroidjoint; 16 — Tracheal cartilages; 17 — Crico-arytenoid ligament; 18 — Arytenoid cartilage; 19 — Thyroid cartilage, left lamina; 20 — Stalk of epiglottis; 21 — Pre-epiglottic fat body; 22 — Corniculate cartilage; 23 — Cricopharyngeal
ligament; 24 — Anular ligaments
