Which hormone is produced by alpha cells in the pancreas?

Alpha cells in the pancreas are responsible for producing glucagon, which plays a crucial role in glucose metabolism. Glucagon is released into the bloodstream when blood glucose levels fall, stimulating the liver to convert stored glycogen back into glucose and release it into the bloodstream. This process increases blood glucose levels, providing the body with the necessary energy, especially between meals or during periods of fasting.

The other hormones listed are produced by different cells in the pancreas. For instance, insulin is produced by beta cells and helps lower blood glucose levels, while somatostatin is secreted by delta cells and regulates the inhibitory effects on both insulin and glucagon secretion. Cortisol, although related to glucose metabolism, is produced by the adrenal glands and is involved in broader metabolic functions and stress responses. Understanding the specific roles of these hormones is essential for grasping their function in maintaining homeostasis in the body.