Larynx

Larynx, specialized organ of the respiratory tract used in voice production. It lies above the trachea in the neck, forming the Adam's apple, and consists of several cartilage components linked by small muscles. Two folds, or vocal cords, lie above the trachea and can be pulled across the airway so as to regulate and intermittently occlude air flow. It is the movement and vibration of these that produce voice.