That portion of the pancreas that produces insulin, also called the Islets of Langerhans.

A grouping of small island formations, typically made of rock. Islets can pose a danger to passing ships because of the way water can swirl or race around them. One example of this is Race Rocks, on the southern most point of Vancouver Island.

(pronunciation: EYE-let cells). The clumps of cells within the pancreas that include; alpha cells, which make glucagon; beta cells, which make insulin; delta cells, which make somatostatin; and PP cells and D1 cells about which little is known. The islet cells appear under low-power magnification to be islands (islands within the pancreas). First described by Dr. Paul Langerhans in 1869.