Pancreas is a long, thin gland which transversely extends directly behind the stomach. The pancreas has two main functions. The first is to create the enzymes pancreatic excretory duct passes into the duodenum and the duodenal part in the digestion of food. Another main function is the secretion of two hormones – insulin and glucagon – which play an important role in regulating blood glucose levels.
Glucose is found in many groceries (not just in sweet dishes) and it is the main energy source for all cells if the body. Insulin stimulates cells to absorb the amount of blood glucose, which corresponds to its energy needs, and stimulates the liver to absorb it and dispose of the rest; therefore, insulin acts in a way that lowers the glucose levels in blood. Glucagon (along with hormone secreted gland) stimulates the liver to release glucose, and therefore raises glucose levels in blood.