Examples of hormones produced by the endocrine system include insulin from the pancreas, testosterone from the testes, estrogen from the ovaries, cortisol from the adrenal cortex, epinephrine from the adrenal medulla, growth hormone from the anterior pituitary gland, prolactin from the anterior pituitary gland, follicle-stimulating hormone (FSH) from the anterior pituitary gland, luteinizing hormone (LH) from the anterior pituitary gland, melatonin from the pineal gland, and thyroxine (T4) and triiodothyronine (T3) from the thyroid gland.