Now, the collection of millions of cells inside the pancreas that have this endocrine capability, the ability to produce hormones and release these hormones into our bloodstream are known as the eyelids of Langerhons. And there are four major types of cells that make up that constitute the eyelids of Langerhans. These cells are alpha cells, beta cells, delta cells, and gamma cells. So let's discuss each one of these cells. Let's discuss the hormone that each one of these cells releases and what the function of that specific hormone is. So basically, each one of these four types of cells that make up the eyelids of Langrehons are capable of producing and secreting its own hormone.