The pancreas is a gland and organ located in the abdomen, this gland regulates sugar levels in the blood and secretes different hormones that include the glucagon, the insulin, and the somatostatin. In the case of the glucagon, this is secreted by the alpha cells while the insulin is secreted by the beta cells and this hormone plays an important role in the metabolization of carbohydrates. On the other hand, the T3 or triiodothyronine and the T4 or thyroxine are both hormones secreted by the thyroid gland. Therefore, the hormone produced by beta cells of the pancreas is insulin.
