Secretin

Secretin is a hormone produced by the small intestine in response to the acidic contents arriving from the stomach. Its main role is to regulate digestion by signaling the pancreas to release bicarbonate, a substance that neutralizes stomach acid, protecting the small intestine and creating a better environment for enzymes to work. Additionally, secretin can stimulate the secretion of digestive fluids and influence other digestive processes. It acts as a critical communication signal between the small intestine and the pancreas, ensuring that digestion proceeds smoothly and efficiently.