In this view, the spinal column has been removed, so that the view is into the pharynx. The esophagus and pharynx have been opened to show the connections of the nasal cavity, oral cavity, larynx ...

a: The bolus (B) is retained in the mouth by apposition of the posterior aspect of the tongue and the relaxed soft palate (U). A small amount of contrast has been introduced through the nose and ...