The endokrin sistem is a network of glands that produce and release hormones into the bloodstream. These hormones regulate various bodily functions, including growth, metabolism, and mood. Key glands in this system include the pituitary gland, thyroid gland, and adrenal glands, each playing a vital role in maintaining homeostasis. Hormones act as chemical messengers, traveling through the blood to target organs and tissues. For example, the insulin hormone, produced by the pancreas, helps control blood sugar levels. The proper functioning of the endokrin sistem is essential for overall health and well-being.