Anatomy & Physiology · Chapter 1

Homeostasis: the Feedback Loop in Action

Your body holds dozens of values — temperature, blood sugar, pH — inside a narrow set point. Knock one off balance and a negative feedback loop springs into action to pull it back. Throw the body a curveball below and 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 regulate
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)