Fudan University Shanghai Cancer Center Soft palate Tonsil Tongue base Epiglottis Vallecula Supraglotticbone Posterior pharyngeal wall Pre-epiglottic space Cervical esophagus False vocal cord Ventricle Arytenoid cartilages Glottic True vocal cord Cricoid cartilage Subglottic Posterior mucosa Thyroid cartilage Trachea Cricoid cartilage Tracheal rings Thyroid ⑨复火拳上海医学院肿瘤学余Fudan University Shanghai Cancer Center 复旦大学上海医学院肿瘤学系