What are the effects of thyroid hormones (T3 & T4)? Effects on Metabolism Increase basal metabolic rate of most tissues (Long duration of action):Increased heat productionIncreases cardiac metabolic rate:Ionotropic / chronotropic effectIncreased lipolysis &...
Which hormones are produced by the thyroid gland? Hormone Thyroxine (T4) - carries 4 iodine atoms) Triiodothyronine (T3) - carries 3 iodine atoms) Reverse-triiodothyronine (r-T3) - formed by peripheral conversion of T3 Calcitonin Function Regulation of metabolism and...
How are thyroid hormones synthesised, stored and released? Can be considered in 4 steps: 1. Iodide Trapping 2. Iodide Oxidation & Organification 3. Storage in Colloid with Thyroglobulin 4. Secretion of Thyroid Hormones Iodine obtained in diet from dairy, grains...
How are thyroid hormones regulated? Thyroid hormone production is regulated by a series of negative feedback loops Thyroid stimulating hormone (TSH) is an important regulator: Peptide hormone produced in the anterior pituitary gland Stimulates the production and...
How are thyroid hormones synthesised, stored and released? Can be considered in 4 steps: 1. Iodide Trapping 2. Iodide Oxidation & Organification 3. Storage in Colloid with Thyroglobulin 4. Secretion of Thyroid Hormones Iodine obtained in diet from dairy, grains...
