ANATOMY

Detailed explanation-1: -Pancreatic cells secrete insulin, the body’s only hormone capable of lowering plasma glucose levels. Impaired or insufficient insulin secretion results in diabetes mellitus. The cell is electrically excitable; in response to an elevation of glucose, it depolarizes and starts generating action potentials.

Detailed explanation-2: -Insulin is normally secreted by the beta cells (a type of islet cell) of the pancreas. The stimulus for insulin secretion is a high blood glucose-it’s as simple as that. Although there is always a low level of insulin secreted by the pancreas, the amount secreted into the blood increases as the blood glucose rises.

Detailed explanation-3: -When we eat food, glucose is absorbed from our gut into the bloodstream, raising blood glucose levels. This rise in blood glucose causes insulin to be released from the pancreas so glucose can move inside the cells and be used.

Detailed explanation-4: -Insulin is a hormone that helps control your body’s blood sugar level and metabolism–the process that turns the food you eat into energy. Your pancreas makes insulin and releases it into your bloodstream.

Detailed explanation-5: -Insulin is released by the ‘beta cells’ in the islets of Langerhans in response to food. Its role is to lower glucose levels in the bloodstream and promote the storage of glucose in fat, muscle, liver and other body tissues. ‘Alpha cells’ in the islets of Langerhans produce another important hormone, glucagon.