vocal tract

This term is a technical anatomical designation used primarily in linguistics, phonetics, and speech pathology. It describes the entire cavity above the larynx, encompassing the pharynx, the oral cavity, and the nasal cavity, which together function as a filter for the raw sound produced by the glottis.

In a clinical or academic context, the term is used to discuss how the physical configuration of the throat and mouth—such as the position of the tongue or the opening of the velum—determines the acoustic properties of speech. It is rarely used in casual conversation, where terms like throat or mouth are more common.