Medical Term:

islets of Langerhans

Pronunciation: lahng′ĕr-hahnz

Definition: cellular masses consisting of several to several hundred cells lying in the interstitial tissue of the pancreas; they are composed of five different cell types that make up the endocrine portion of the pancreas and are the sources of insulin, glucagon, somatostatin, pancreatic polypeptide, and gastrin.

Synonym(s): islet tissue, Langerhans islands, pancreatic islands, pancreatic islets

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