Pancreas is one of the accessory organs which assist the organs of the GI tract in the processing of food by secretion of glucagon, insulin, and somatostatin. It is a fish-shaped, spongy, grayish-pink organ that stretches across the back of the abdomen behind the stomach.
The pancreas is an endocrine gland which secretes hormone insulin into the blood and an exocrine gland as well while secreting enzymes, fluids, and ions into the digestive tract to support digestions.