Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Thirst Mechanism
Name: Laura
Status: student
Grade: 9-12
Location: NV
Country: USA
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.

Nate D.

Click here to return to the General Topics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory