Rapid Tone
Rapid Tone These digestive contribute to the breaking down of carbohydrates, fats, and protein content present in the half digested food. This part of pancreas which performs endocrine function is formed out of millions of cell clusters. These cell clusters are known as the Islets of Langerhans. These islets consist of four types of cells, which are classified on the basis of the hormones they secrete. The cells that secrete glucagon are called alpha cells, whereas the cells that secrete insulin are known as the beta cells. Somatostatin is secreted by delta cells, whereas pancreatic polypeptide is secreted by the PP cells. The structure of islets comprises endocrine glands arranged in cords and clusters. These glands are crisscrossed by a thick chain of capillaries. These capillaries are lined up layers of cells that are in direct contact and the blood vessels in the gland.