The vocal tract is the cavity in the human body that is responsible for the production of the human voice. ![[full-vocal-tract.png]] The vocal tract can be divided into 2 parts: the subglottal system which includes the diaphragm, lungs, and trachea, and the [[supra-laryngeal vocal tract]] which includes the larynx, the epiglottis, the pharynx, the oral cavity, and the nasal cavity.