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What is TRH?

Updated: 12/22/2022
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What is TRH's role in the endocrine system?

it stimulates the thyroid to produce the thyroid hormone which regulates metabolic rate


Which hormone does hypothalamus gland secrete?

Hypothalamus secrete several hormones.They are TRH,CRH,GnRH,PRH,GHIH,PIH.


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


How feedback control regulates the rate of metabolism?

Feedback control regulates the rate of metabolism through various mechanisms. One of the key ways is through negative feedback loops involving hormones and enzymes. For example, when the level of a particular hormone or metabolite in the body increases, it signals the body to decrease the production or activity of enzymes involved in metabolism. This helps to maintain homeostasis and prevent excessive metabolic activity. Additionally, feedback control also plays a role in regulating energy balance, nutrient uptake, and waste elimination to maintain optimal metabolic rate.


What is processing control system?

A furnace by definition provides heat. There must be something that controls that heat; that is that tells the furnace when to fire up the burners and when to shut down the burners. This function is provided by the furnace control system. Usually the control system itself is controlled by a thermostat which maintains the temperature at a preset level on the thermostat.