When blood levels of thyroid hormones fall, the hypothalamus (in your brain) releases a hormone (thyrotropin-releasing hormone) that communicates with the pituitary gland. In response, the ...

“Typically, there are reduced amounts of thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH), which causes the thyroid to make too few hormones.” Who is more likely to be ...

The hypothalamus releases thyrotropin-releasing hormone (TRH) in response to low T4 (thyroxine) and T3 (triiodothyronine) levels. TRH signals the anterior pituitary gland to release thyroid ...

Thus, the six hormones secreted by the anterior pituitary gland include adrenocorticotrophic hormone ... TSH by the anterior pituitary gland, the thyroid gland responds by producing and releasing ...

Historically, the "quality" of a serum TSH method has been determined from a clinical benchmark - the assay's ability to discriminate euthyroid levels (~ 0.4 to 4.0 mIU/L) from the profoundly low ...