Upper Respiratory Tract
Operative approaches through the front of the neck to the larynx, pharynx, and trachea. a: Approach to pharynx between the hyoid and the thyroid cartilages. b: Approach to the larynx between the thyroid and cricoid cartilages. c: approach to the larynx below the cricoid cartilage and above the isthmus of the thyroid gland. d: Approach for low tracheotomy.