👉 Islets are small, enclosed structures that contain special cells in their walls. These cells play a crucial role in the function of the pancreas, which is responsible for producing the hormones insulin and glucagon. The islets produce these hormones when they receive signals from other parts of the body or when they detect changes in blood sugar levels. Islets can be categorized into two main types: beta-cell islets (also known as beta cells) and alpha-cell islets (also known as alpha cells