K...I guess i'll show off my feedback loops. feedback loops are extremely important mechanisms on human (biological actually) existence. an example of such is the loop between the hypothalamus, pituitary, and thyroid glands in the body. the hypothalamus secretes a hormone known as thyroid releasing hormone (TRH). this hormone acts on the pituitary to release thyroid stimulating hormone (TSH). this hormone directly acts on the thyroid gland which secretes thyroxine (known as T3 and T4 depending on the active state it's in). thyroxine is the key hormone in the body in control of metabolism. a rise in T3/T4 increases the metabolism of the body as well as various other actions such as enhanced immune responses, and stimulated EEG activity.
it's known as a negative feedback loop because a rise in T3/T4 hormones signals the hypothalamus to stop producing TRH which makes the pituitary stop releasing TSH which in turn shuts off the T3/T4 secretion. TRH is initially stimulated by increased glucose levels and/or decreased insulin levels.
K...I guess i'll show off my feedback loops. feedback loops are extremely important mechanisms on human (biological actually) existence. an example of such is the loop between the hypothalamus, pituitary, and thyroid glands in the body. the hypothalamus secretes a hormone known as thyroid releasing hormone (TRH). this hormone acts on the pituitary to release thyroid stimulating hormone (TSH). this hormone directly acts on the thyroid gland which secretes thyroxine (known as T3 and T4 depending on the active state it's in). thyroxine is the key hormone in the body in control of metabolism. a rise in T3/T4 increases the metabolism of the body as well as various other actions such as enhanced immune responses, and stimulated EEG activity.
it's known as a negative feedback loop because a rise in T3/T4 hormones signals the hypothalamus to stop producing TRH which makes the pituitary stop releasing TSH which in turn shuts off the T3/T4 secretion. TRH is initially stimulated by increased glucose levels and/or decreased insulin levels.
now who's gonna read that
I read it.. :/
Last edited by Nate on 19 May 2011 11:25 am; edited 1 time in total _____________________
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