Explain the role of secretin in regulating bile and pancreatic juices?

Important hormone. Secretin is important in digestion. When stomach acid flows into the duodenum (small intestine) secretin is released. The secretin stimulates the pancreas to release bicarbonate (sodium bicarbonate) which helps digest food. It also enhances the function of cck which is important in gallbladder function. Secretin is stopped from working when the ph of the stomach is blocked with certain medications.