Homeostatic Control

Negative Feedback

Topic Menu
Content Contributors
Christian Bien Portrait_edited.jpg

Ben Whitten

Learning Objectives

tutorial.png

one.png
What is negative feedback?
Slide1.jpeg

Negative feedback occurs when the response to a stimulus has the effect of counteracting or reducing the effects of the original stimulus. For example, if you feel cold, your response to this stimulus may be to put on a jumper - this response reduces/eliminates the original stimulus of feeling cold. Negative feedback systems are also called steady state control systems, as they return the body to a steady state.

two.png
Negative Feedback Analogy
Slide2.jpeg

An analogy which can be used to describe how negative feedback loops occur is that of an AC (air-conditioning) system in a room. Let's say that the temperature is set to 22 degrees Celsius. On a warmer day when the temperature rises above 22 degrees, the thermostat automatically switches the air conditioner on. When the room becomes cooler than 22 degrees, the thermostat then switches the air conditioner off when it reaches its target temperature. The process is repetitive so that the air temperature remains relatively constant.

two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
two.png
Slide2.jpeg
Introduction to Homeostasis
Feedback Systems
Negative Feedback
Positive Feedback
Students Walking Up Stairs_edited.jpg

Registrations Now Open for Empowered Academy

A Free Student-Centred Revision Program

Logo-New-Large.png