Islet of Langerhans

**Semantic type:** Tissue

**Definition:** A specialized region of tissue located within the parenchyma of the pancreas that contains a mixed population of distinct endocrine cells, including beta, alpha, pancreatic polypeptide, delta, and epsilon cells, which respectively produce and secrete insulin, glucagon, pancreatic polypeptide, somatostatin, and ghrelin.

**Synonyms:** - Endocrine Pancreas - Endocrine Pancreas - Human Pancreatic Islet Cells - Islands of Langerhans - Islet Cells - Islets of Langerhans - Islets of Langerhans - Langerhans Islets - PANCREAS, ENDOCRINE - Pancreatic Islets - Pars Endocrina Pancreatis