Thyroid hormones 1. Uptake of iodide 2. Oxidation of iodide(peroxidase) and iodination and coupling of tyrosine 3. Formation of thyroxine(t4) and triiodothyronine (T3) from iodotyrosine 4. Secretion of thyroid hormones(proteolytic enzymes) 5. Regulation by thyroid stimulating hormone(TSH), T4sThyroid hormones 1. Uptake of iodide 2. Oxidation of iodide (peroxidase) and iodination and coupling of tyrosine 3. Formation of thyroxine (T4 ) and triiodothyronine (T3 ) from iodotyrosine 4. Secretion of thyroid hormones (proteolytic enzymes) 5. Regulation by thyroid stimulating hormone (TSH), T4 , T3