What are the main function of the secretin in monogastric digestion

1. Secretin stimulates the release of bicarbonate ions from the pancreas to neutralize acidic chyme entering the duodenum from the stomach. This helps to create a more alkaline environment for optimal enzyme activity.

2. Secretin also inhibits the secretion of gastric acid in the stomach, thus further helping to neutralize the acidity of chyme before it reaches the small intestine.

3. Secretin acts on the liver to stimulate the production of bile, which aids in the emulsification and digestion of fats in the small intestine.

4. Secretin regulates the release of pancreatic enzymes, such as lipase and amylase, which are essential for the breakdown of fats and carbohydrates in the small intestine.

5. Secretin also promotes the secretion of water and electrolytes from the pancreas and intestines, which helps to maintain proper hydration and ion balance in the digestive system.