Where are the islets of Langerhans located?

The islets of Langerhans are clusters of cells located in the pancreas. They play a crucial role in glucose metabolism and the regulation of blood sugar levels through the production of hormones such as insulin and glucagon. These islets consist of different types of cells, including alpha cells (which produce glucagon) and beta cells (which produce insulin). The presence of these cell clusters allows the pancreas to respond to changes in blood glucose levels effectively, making them critical to maintaining homeostasis. Understanding the function and location of the islets of Langerhans is essential, especially when studying conditions like diabetes mellitus, where insulin regulation is impaired.