How Thyroid Hormones are Produced
In short: The thyroid gland produces hormones like thyroxine and triiodothyronine, which lead to heat generation in humans.
1. Thyroid hormones are two hormones produced and released by the thyroid gland: triiodothyronine (T3) and thyroxine (T4). 2. The major form of thyroid hormone in the blood is thyroxine (T4), whose half-life of around one week is longer than that of T3. 3. Lack of thyroid hormones leads to increased production of thyroid-stimulating hormone, which causes the thyroid to enlarge. 4. A deficiency of iodine leads to decreased production of T3 and T4, enlarges the thyroid tissue, and causes simple goitre.
Sources: Wikipedia, “Thyroid hormones (Wikipedia)” (CC BY-SA 4.0). Illustrative, not to scale.
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