The clusters of hormone-producing cells that are scattered throughout the pancreas.

http://upload.wikimedia.org/wikipedia/commons/9/99/Gray1105.png

Anatomical structure which consists of glands developed from pancreatic ducts in the larvae and secrete insulin.[AAO]

http://purl.obolibrary.org/obo/FMA_76489

pancreatic islet, pancreatic insula

uberon

island of pancreas, island of Langerhans, islets of Langerhans

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

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

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)

• endocrine pancreas