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Hormones of the Thyroid

From: belitakin123 - 2 years 30 weeks ago

Hormones of the Thyroid
The two main hormones the thyroid produces and releases are T3 (tri-iodothyronine) and T4 (thyroxine). A thyroid that is functioning normally produces approximately 80% T4 and about 20% T3, though T3 is the stronger of the pair.
To a lesser extent, the thyroid also produces calcitonin, which helps control blood calcium levels.
Diseases and Disorders of the Thyroid
There are many diseases and disorders associated with the thyroid. They can develop at any age and can result from a variety of causes—injury, disease, or dietary deficiency, for instance. But in most cases, they can be traced to the following problems:
Too much or too little thyroid hormone (hyperthyroidism and hypothyroidism, respectively).
Abnormal thyroid growth
Nodules or lumps within the thyroid
Thyroid cancer

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