In the case of a decrease in blood glucose level, the Islets of Langerhans secretes more glucagon into the bloodstream to be transported to the liver and muscles. Glucagon causes the conversion of glycogen, fats and amino acids into glucose. Blood glucose concentration increases to normal. This provides a feedback to the receptor to reduce glucagon production.

When blood glucose concentration decrease below normal, the Islets of Langerhans in pancreas are stimulated. They secrete more glucagon into the bloodstream. Blood transports glucagon to liver and muscles. Glucagon causes the conversion of stored glycogen back to glucose and causes the conversion of fats and amino acids into glucose. From liver, glucose enters the bloodstream. Blood glucose concentration increases to normal, providing a feedback to receptor to reduce glucagon production.

When blood glucose concentration increase above the normal, islets of Langerhans in the pancreas are stimulated and secrete more insulin to liver and muscles. Insulin increases the permeability of cell membrane to glucose. Glucose is absorbed at a faster rate by cells. insulin causes the liver and muscles to convert excess glucose into glycogen for storage in liver and muscles. Blood glucose concentration will then decrease to normal

However, when the blood glucose decreases, the islets of Langerhans secrete more glucagon into the bloodstream. Blood transport glucagon to liver and muscles which glucagon stimulate them to convert stored glycogen back to glucose, and fats and amino acids to glucose. As glucose enters the bloodstream, blood glucose concentration increases back to normal.

When blood glucose concentration falls below normal levels, the islets of Langerhans are stimulated to release more glucagon into the bloodstream. The blood carries glucagon to the liver and muscles, where it triggers the conversion of stored glycogen back into glucose. The glucose enters the bloodstream, raising blood glucose concentration. This rise provides negative feedback to the pancreas, reducing glucagon production and helping maintain blood glucose within normal limits.

his liver will reject insulin that is being produced by the islets of Langerhans and this will cause a persistanly high blood glucose level, there will be a presence of glucose in urea and when he gets cut his boo-boo will not heal fast.

High glucose response: The explanation of how insulin "increases the permeability of cell membrane to glucose" and hence glucose uptake is increased should be clearly indicated instead of writing as a separate point.