*Any information, photos, pricing or details on our website is provided in good faith and with the intention of accuracy. However, sometimes information is listed on our website automatically by computers and may not be accurate. Please contact our dealership to confirm information, photos, colors, details or pricing for any of our vehicles listed on our website. We appreciate your understanding that technology is used to help us provide the information on our site and sometimes technology does not work as intended.
The thyroid gland produces the hormones thyroxine, triiodothyronine, and calcitonin. Thyroxine and triiodothyronine are produced by thyroid folliclar cells. Thyroid cells absorb iodine from certain foods and combine the iodine with tyrosine, an amino acid, to make thyroxine (T4) and triiodothyronine (T3).
For example, the pituitary gland (endocrine gland) secretes thyroid-stimulating hormone, which acts on the target organ, the thyroid gland, to stimulate production of the thyroid hormones T3 and T4.The pituitary then monitors the circulating levels of thyroid hormones.n negative feedback, the endocrine gland has a natural tendency to over-secrete its hormone. The hormone then stimulates the target tissue to perform a function. Thus, the important factor is not the rate of secretion of the hormone but the rate that the target function is performed.