islet of Langerhans 胰岛 A primitive exocrine pancreas can be found in holocephalan cartilaginous fish; a pancreatic duct directly ending in the gut lumen is connected to a glandular structure made of exocrine cells and associated with cell islets, which comprises three different hormone-producing cell types: insulin, somatostatin and glucagon (Yui and Fujita, 1986) AAO:0010406 Anatomical structure which consists of glands developed from pancreatic ducts in the larvae and secrete insulin.[AAO] BTO:0000991 CALOHA:TS-0741 EFO:0000856 EMAPA:32927 EV:0100130 FMA:16016 GAID:324 MA:0000127 MAT:0000076 MESH:D007515 MIAA:0000076 Mammals, birds, reptiles and amphibians have a pancreas with similar histology and mode of development, while in some fish, the islet cells are segregated as Brockmann bodies.[well established][VHOG] UBERON:0000006 UMLS:C0022131 VHOG:0000646 XAO:0000159 island of Langerhans island of pancreas islets of Langerhans pancreatic insula pancreatic islet the clusters of hormone-producing cells that are scattered throughout the pancreas uberon holocephalan软骨鱼中可见一种原始的外分泌胰腺;胰管在肠腔中直接结束并连接到由外分泌细胞狗成，并与胰岛细胞相关联的腺体结构，其包括三个不同的激素产生细胞类型：胰岛素、促生长素抑制素和胰高血糖素（Yui and Fujita, 1986） 哺乳动物、鸟类、爬行动物和两栖动物的胰腺具有相似的组织学和发育方式，而在某些鱼类中，胰岛细胞被分离为布氏体。[well established][VHOG] 由幼体胰管发育成的腺体构成并分泌胰岛素的解剖结构[AAO] 聚集在整个胰腺的激素-分泌细胞群 胰岛(island of Langerhans) 胰岛(island of pancreas) 胰岛(islets of Langerhans) 胰岛(pancreatic insula) 胰岛(pancreatic islet) endoderm-derived structure 内胚层衍生结构 cell cluster 细胞群