Anatomy, Head and Neck, Trachea

摘要: The trachea is a U-shaped structure that composed of hyaline cartilage on the anterior and lateral walls, with trachealis smooth muscle forming posterior border trachea. entire tracheal lumen lined by ciliated pseudostratified columnar goblet cells create mucosa. part conducting airway system begins immediately inferior to larynx connected cricothyroid (C6 level) cricotracheal ligament. Followed series 16 20 rings each individually an annular ligament terminates at carina (T5 level posteriorly| sternal angle anteriorly). It then splits into right left main bronchi.