Other terms
Langerhans Islets,Pancreatic Islets,Islet, Pancreatic,Islets, Pancreatic,Pancreatic Islet,Nesidioblasts,Nesidioblast,Pancreas, Endocrine,Endocrine Pancreas,Islands of Langerhans,Langerhans Islands,Islet Cells,Cell, Islet,Cells, Islet,Islet Cell
Description
Islets of Langerhans: Irregular microscopic structures consisting of cords of endocrine cells that are scattered throughout the PANCREAS among the exocrine acini. Each islet is surrounded by connective tissue fibers and penetrated by a network of capillaries. There are four major cell types. The most abundant beta cells (50-80%) secrete INSULIN. Alpha cells (5-20%) secrete GLUCAGON. PP cells (10-35%) secrete PANCREATIC POLYPEPTIDE. Delta cells (~5%) secrete SOMATOSTATIN.
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