ANATOMY & PHYSIOLOGY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site islets of Langerhans Image credit: How Stuff Works: Diabetes Small groups of cells in the pancreas that function as an endocrine gland. The alpha (or A) cells secrete the hormone glucagon, the beta (or B) cells secrete insulin, the delta (or D) cells secrete somatostatin, and the pancreatic polypeptide (PP) cells secrete pancreatic polypeptide. The islets of Langerhans are named after their discoverer, the german anatomist and microscopist Paul Langerhans (1847-1888). Related category    • ANATOMY AND PHYSIOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP