Overview Pancreatic secretions Pancreatic secretions overview exocrine pancreas releases secretions into duodenum of small intestine login to view 8 more bullets formation of pancreatic secretions exocrine pancreas organization resembles that of salivary glands acinar cells secrete enzymatic components of pancreatic secretions login to view 1 more bullet centroacinar cells and ductal cells secrete initial isotonic aqueous components of pancreatic secretions ductal cells modify initial isotonic aqueous components by transport processes in ductal epithelial cells login to view 3 more bullets flow rate and composition of pancreatic secretions flow rate changes HCO3- and Cl- concentrations in pancreatic secretions login to view 5 more bullets