How does Epinephrine Stimulate glycogenolysis in liver?
It has several metabolic effects, here are a few related to glucose: 1) "Glucagon secretion is enhanced by an action on the Beta receptors of the alpha cells of the pancreatic islets." 2) stimulation of Beta receptors in brown fat increases fat breakdown to free up glycerol and fatty acids. glycerol is a starting material for glucose. 3) direct alpha 1 stimulation of the liver for glycogenolysis and Beta 2 for gluconeogenesis What happens inside the cells after the outer receptors have been stimulated is murky to me, it does involve G proteins and cyclic amp level changes.