The effect of a drug which blocks the conversion of T4 into T3 on TSH secretion, thyroxine secretion, and size of the thyroid gland. Introduction: The hypothalamus has the task of secreting thyrotropin-releasing hormone (TRH) to stimulate the anterior pituitary gland to release thyroid-stimulating hormone (TSH). The thyroid gland is triggered by TSH to release thyroxine or tetraiodothyronine (T4) and triiodothyronine (T3). The secreted thyroxine and triiodothyronine are transferred to the target sites through the bloodstream.

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Chapter 11, Problem 22RA

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To review:

The effect of a drug which blocks the conversion of T4 into T3 on TSH secretion, thyroxine secretion, and size of the thyroid gland.

Introduction:

The hypothalamus has the task of secreting thyrotropin-releasing hormone (TRH) to stimulate the anterior pituitary gland to release thyroid-stimulating hormone (TSH). The thyroid gland is triggered by TSH to release thyroxine or tetraiodothyronine (T4) and triiodothyronine (T3). The secreted thyroxine and triiodothyronine are transferred to the target sites through the bloodstream.

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