to study the mode of transepithelial na+ transport into pancreatic ducts during secretin-dependent nahco3 secretion , na , k-atpase was first localized within the exocrine pancreas of the pig using a cytochemical reaction for k-dependent p-nitrophenylphosphatase ( k-nppase ) .
C0030288
pancreatic ducts
C0553695
exocrine pancreas