part of expresses Pgant4 adult proventriculus midgut epithelium adult midgut cell of proventriculus 2020-04-20T08:48:48Z adult cardia secretory cell FBbt:00049283 adult proventriculus secretory cell These cells express Pgant4 (Hung et al., 2020). Cell of the adult proventriculus that is part of the midgut (King, 1988). These cells make up the anterior part of the intermediate layer and the outer layer of the proventriculus and they secrete the second to fourth layers of the peritrophic membrane (King, 1988). adult midgut cell of cardia fly_anatomy.ontology adult cardia EC somatic cell