Question

What triggers glucagon?

Answer 1

Glucagon:

1. A pancreatic hormone secreted by the alpha cells in the islets of Langerhans.
2. The action of Glucagon is the opposite of insulin i.e. it increases blood glucose levels.

Glucagon is triggered by:

1. The secretion of Glucagon is stimulated by the ingestion of protein, low blood glucose levels, and by the adrenal gland
2. The secretion of Glucagon is inhibited by high blood glucose levels and insulin secretion.
3. It increases the concentration of blood glucose levels by promoting glycogenolysis (the process of breakdown of stored glycogen in the liver into glucose ) and gluconeogenesis (the process of producing glucose from non-carbohydrate substances such as glycerol and amino acids).