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Name: Laura
Status: student
Grade: 9-12
Location: NV
Country: USA
Date: Fall 2010

Question:
Is the sensation of thirst associated with a negative or a positive feedback mechanism? and why?



Replies:
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.

Nate D.



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