What is the function of glucagon in the body?

Glucagon plays a vital role in maintaining blood glucose levels in the body, particularly when they drop too low. Its primary function is to increase blood glucose levels, primarily by stimulating the liver to release stored glucose through a process called glycogenolysis. This process breaks down glycogen, which is the stored form of glucose in the liver, and releases glucose into the bloodstream. Additionally, glucagon promotes gluconeogenesis, the formation of glucose from non-carbohydrate sources, which also contributes to elevating blood glucose levels.

Understanding the role of glucagon is crucial, especially in the context of diabetes management, where balancing levels of insulin and glucagon is key to maintaining appropriate blood sugar levels.