part of chitinous intima chitinous intima of the adult foregut chitinous intima of the cardial valve FBbt:00007041 Cuticle layer that lines the regions of the adult proventriculus (cardia) that derive from the foregut, including the inner and intermediate layers. The cuticle is thicker in the inner layer than in other regions of the proventriculus, forming several longitudinal folds and causing the esophageal lumen to appear irregular in cross-section. stomodaeal intima fly_anatomy.ontology