What is negative feedback in biology when controlling the blood sugar levels?

Negative feed back generally involves 2 hormones: glucagon, which is produced by the pancreas and stimulates the liver to release glucose onto the blood if glucose levels drop too low, and insulin, also produced by the pancreas, that stimulates the uptake of glucose by the cells if blood glucose gets too high.What is negative feedback in biology when controlling the blood sugar levels?
Negative feedback feeds part of a system's output, inverted, into the system's input; generally with the result that fluctuations are attenuated. Many real-world systems have one or several points around which the system gravitates. In response to a perturbation, a negative feedback system with such point(s) will tend to re-establish equilibrium....





In biology, this process (generally biochemical) is often referred to as homeostasis; whereas in mechanics, the more common term is equilibrium....