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How does the physiological feedback regulate the blood levels of the thyroid hormones?

April 26, 2017Biology blood feedback Hormones levels Mathematics physiological regulate Thyroid

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How does the physiological feedback regulate the blood levels of the thyroid hormones?

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thyroid hormone is released by the thyroid gland in response to the presence of THYROID STIMULATING HORMONE which in turn is secreted by the pituitary gland present in the brain.pituitary secrete the thyroid stimulating hormone under the influence of THYROTROPIN RELEASING HORMONE secreted by the hypothalamus present in brain.when thyroid hormone levels in the blood reach to a particular level then it inhibits the release of thyrotropin stimulating hormone from hypothalamus and thyroid stimulating hormone from pituitary.decrease in secretion of thyroid stimulating hormone lead to less stimulation of thyroid gland and hence decrease in concentration of thyroid hormone.when thyroid hormone levels in blood falls the reverse happen leading to increase in thyroid secretion