how does negative feedback operate within the endocrine system?

Answer 1

In general, any gland that secretes hormones (i.e. the endocrine system) has some sensor that measures the hormone's levels in the blood, and is able to inhibit that gland's secretion in order to prevent excessive hormone production (which could be harmful to the body). This is commonly referred to as negative-feedback regulation.

Answer 2

Well, the endocrine system is a wide one. So, we Will use the example of the kidney.

When we drink too much water, the osmosis pressure in the blood would drop and is felt by the osmoreseptor in the hypothalamus. Then, the pituitary gland would produce less ADH hormonee( anti diuresis hormon.). The distal and collecter duct would be water proof. Therefore, less water is taken into the blood flow. Lots of low concentrated urine would be produce.The blood osmolarity would increase to normal.

However, when we drink too little water, the blood osmolarity would go up and will make the hypothalamus produce less ADH hormone. The distal and collecting duct would take more water into the blood flow. Less urine(high concentration) would be produce. The blood osmolarity would decrease to normal.

I hope this helps. :)

Answer 3

It serves to maintain body homeostasis. Whenever the body needs to adjust to a changing level, such as eating something with sugar and having the corresponding rise in blood sugar levels, the body will use a negative feedback mechanism to return itself back to normal limits. In this case, insulin would be released, and blood sugar levels would be lowered back to normal.