Eng. rrotu, ]'rote or }'rota, possibly from preotan, to press, whence threat, or, with loss of initial s, connected with strut, to swell), the term applied to the front external part of the neck from below the chin to the collar-bone in human and animal anatomy, and to the internal parts, which include the gullet, viz. the fauces, pharynx and oesophagus, and the windpipe, viz. the larynx and trachea (see Pharynx, Alimentary Canal, and Respiratory System: Anatomy; and for diseases see Pharyngitis, Laryngitis, Diphtheria, Tonsilitis and Oesophagus) .