2. What is Insulin?
What is Insulin?

What is Insulin?

Many of the functions in the body are mediated by hormones. Hormones work like keys which open doors to different functions of the body.


The hormone insülin is produced in the pancreas in special types of cells called beta cells. The other very important function of the pancreas is to produce enzymes for food digestion.

The beta cells are located in the Islets of Langerhans which also contain alpha cells producing the hormone glucagon. Insulin is very important for the development of your body. Insulin is the key that opens the door for glucose and entire cells. When the food has entered the stomach and intestine other special hormones further signal the beta cells to continue an increase in insülin production.

The beta cells contain a blood glucose meter that registers when the blood glucose level increases, secreting an adequate amount of insülin into the bloodstream. A non-diabetic person’s blood glucose level will normally not rise more than 2 mmol/l after a meal. 

Insulin-dependent cells are found in the brain cells, nerve fibers, retina, kidneys, adrenals, cells in the blood vessels, the red blood cells. In a situation when there is not enough glucose in the body the insülin production will be stopped, reserving the glucose fort he most important organs.

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