We have the process of gluconeogenesis, the use of our non carbohydrate sources to produce glucose, and then the breakdown of triglycerides into fatty acids and into glycerol, which is ultimately used to form glucose. And all this glucose that is formed is dumped into our blood plasma and this ultimately increases the concentration of glucose inside our blood plasma. Now, when our concentration is high, the glucagon is eventually inhibited. And when it rises high enough, we basically have insulin that is released by our beta cells. And what the insulin does is the opposite of what glucagon does. So insulin acts antagonistically with respect to the glucagon.