Cricotracheal Ligament

Description

Superiorly, the hyoid bone sits above the thyroid cartilage, while the cricoid cartilage forms a complete ring inferior to the thyroid laminae and immediately superior to the first tracheal ring. The cricotracheal ligament (median cricotracheal ligament) spans the gap between the inferior border of the cricoid arch and the superior margin of the trachea, blending laterally with fibroelastic tissue that continues into the tracheal annular ligaments. Strap muscles, including sternohyoid and sternothyroid, lie anterior to the laryngotracheal complex, and the cricothyroid muscle hugs the anterolateral surface between the thyroid and cricoid cartilages. Color coding separates cartilage, muscle, and ligamentous tissue for fast orientation. Clinically, the cricotracheal ligament matters because it marks the transition from larynx to trachea and forms part of the anterior midline corridor used during emergency airway access. In cricothyrotomy, the target is the cricothyroid membrane just superior to the cricoid, but the cricotracheal ligament and first tracheal ring are immediate inferior neighbors, and misplacement can lead to subglottic or proximal tracheal injury. Surgeons also reference this junction in laryngotracheal resection and anastomosis for post-intubation subglottic stenosis, where preservation of cricoid integrity and accurate identification of the first tracheal ring are non-negotiable. Small distances, high stakes. Use this artwork for teaching anterior neck anatomy in gross anatomy, ENT, anesthesia, and paramedic airway curricula, and for illustrating publications on cricothyrotomy landmarks, tracheostomy level selection, and laryngotracheal stenosis repair. It also fits patient-facing materials explaining where the larynx ends and the trachea begins in adult male anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.