part_of part of part of has_part has part has part develops_from develops from develops from contributes to morphology of exocrine pancreas pars exocrina pancreatis exocrine component of pancreas exocrine pancreas exocrine part of pancreas The part of the pancreas that is part of the exocrine system and which produces and store zymogens of digestive enzymes, such as chymotrypsinogen and trypsinogen in the acinar cells [GO]. serous gland pancreatic acinus pancreas ventral pancreatic bud endoderm-derived structure trunk region element pancreatic duct