part of adult foregut adult pharynx Anterior-most portion of the adult foregut, extending from the opening of the labrum to the esophagus. The posterior of the pharynx is the cibarium. The anterior portion is the labral channel, the posterior wall of which is the epipharynx and the anterior wall of which is the hypopharynx. The salivary duct connects to the pharynx just anterior to the cibarium. FBbt:00003128 fly_anatomy.ontology proboscis pharynx