Anatomy & Physiology · Chapter 1

Homeostasis: the Feedback Loop in Action

Your body keeps dozens of values, like temperature, blood sugar, and pH, close to a set point. That is the target value it aims for. Knock one off balance, and a negative feedback loop jumps in to pull it back. Throw the body a curveball below. Then follow the loop, step by step.

The monitor live reading

37.0°CNormal

The negative feedback loop watch it fire

Body temperatureresting at its set point
Choose what to control
Throw it off balance
pace

What’s happening

📷 Reference image
A real labeled figure to compare with the interactive above.
Homeostasis: the Feedback Loop in Action reference figure
Homeostasis: the Feedback Loop in Action — OpenStax, CC BY 3.0 (via Wikimedia Commons)