Date: Fall 2010
Is the sensation of thirst associated with a negative or a
positive feedback mechanism? and why?
Thirst is part of a negative feedback mechanism. When the proper levels
of water are not present in the body, a sensor detects the imbalance.
The brain sent sends a signal to tell the body to obtain water/fluids to
remain to a homeostatic level of water. Once fluids are obtained, the
body can retain the water and levels will increase. Homeostasis is then
reached as the response decreases.
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Update: June 2012