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TRH stands for thyrotropin-releasing hormone. It is a hormone produced by the hypothalamus that stimulates the release of thyroid-stimulating hormone (TSH) from the pituitary gland, which in turn regulates the release of thyroid hormones from the thyroid gland.

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What is TRH's role in the endocrine system?

Thyrotropin-releasing hormone (TRH) is produced by the hypothalamus and stimulates the release of thyroid-stimulating hormone (TSH) from the pituitary gland. TSH then acts on the thyroid gland to stimulate the production and release of thyroid hormones, which regulate metabolism and energy balance in the body.


How would the feedback mechanism function to restore homeostasis after low tsh levels?

When TSH (thyroid-stimulating hormone) levels are low, the hypothalamus detects this decrease and responds by releasing more thyrotropin-releasing hormone (TRH). Increased TRH stimulates the pituitary gland to produce and secrete more TSH. Elevated TSH levels then promote the thyroid gland to produce more thyroid hormones (T3 and T4), which helps restore homeostasis by regulating metabolism and other bodily functions. This feedback loop continues until TSH levels return to a normal range.


How feedback control regulates the rate of metabolism?

The hypothalamus produces thyroid-releasing hormone (TRH), which stimulates theanterior pituitary to produce thyroid-stimulating hormone (TSH), which causes thethyroid gland to produce thyroxine, which increases the rate of metabolism. Risinglevels of TSH and thyroxine in the blood both cause the hypothalamus to slow or stopproduction of TRH, which leads to the slowing of the metabolic rate.


What are some examples of a positive feedback loop and a negative feedback loop?

The most common by far is negative feedback, pretty much every hormone works through negative feedback. Take for example tiroxine: low levels of tiroxine induce production of TRH and TSH which in time increase production of tiroxine, and when the levels of tiroxine are high, it lowers the production of TRH and TSH, lowering production of tiroxine as well. Another example would be insulin: when blood sugar levels rise, the pancreas produces more insulin, and once it takes effect and blood sugar levels lower, the pancras stops the increased production. Positive feedback on the other hand is more rare, an example would be childbirthing, when the baby stretches the cervix, it induces production of oxytocin in the pituitary gland, which causes the contractions of the uterus, pushing the baby out and stretching the cervix even more, making the pituitary gland produce even more oxytocin


Normal value of thyroid releasing hormone?

Test Abbreviation Typical Ranges Serum thyroxine T4 4.6-12 ug/dl Free thyroxine fraction FT4F 0.03-0.005% Free Thyroxine FT4 0.7-1.9 ng/dl Thyroid hormone binding ratio THBR 0.9-1.1 Free Thyroxine index FT4I 4-11 Serum Triiodothyronine T3 80-180 ng/dl Free Triiodothyronine l FT3 230-619 pg/d Free T3 Index FT3I 80-180 Radioactive iodine uptake RAIU 10-30% Serum thyrotropin TSH 0.5-6 uU/ml Thyroxine-binding globulin TBG 12-20 ug/dl T4 +1.8 ugm TRH stimulation test Peak TSH 9-30 uIU/ml at 20-30 min Serum thyroglobulin l Tg 0-30 ng/m Thyroid microsomal antibody titer TMAb Varies with method Thyroglobulin antibody titer TgAb Varies with method

Related Questions

What hormone does tsh release?

TRH


Does increased thyroid hormone production increase or decrease TRH production?

Thyroid releasing hormone (TRH) is released when thyroid hormones are low. Increased thyroid hormone production would serve to inhibit/decrease TRH release.


What are the normal blood values for TRH?

10-20


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How does TRH travel from hypothalamus to the pituitary gland?

by the Hypothalamic-pituitary portal system


Why is it not unespected that PRL would inhibit the secretion of TRH from the hypothalmus?

it is needed for growth


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The airport code for Trona Airport is TRH.


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that's the Spanish pronunciation of the letter J.


Where is thyroid-releasing hormone (TRH) made?

Thyroid-releasing hormone (TRH) is primarily produced in the hypothalamus, a region of the brain that plays a crucial role in regulating various hormonal functions. TRH stimulates the anterior pituitary gland to release thyroid-stimulating hormone (TSH), which in turn promotes the production of thyroid hormones in the thyroid gland. This hormone plays a key role in the feedback loop that regulates metabolism and energy balance in the body.