Negative feedback - Higher
In mammals, conditions such as water concentration, temperature and glucose concentration must be kept as constant as possible. These are examples of The maintenance of steady conditions. The ability of the body to maintain a constant internal environment, eg temperature and blood glucose concentration..
A A mechanism where changes to conditions cause an action to reverse the change, to keep conditions stable. mechanism is an important type of control that is used in homeostasis. A negative feedback control system responds when conditions change from the ideal or set point and returns conditions to this set point. There is a continuous cycle of events in negative feedback.
General stages in negative feedback
In general:
- if the level of something rises, control systems reduce it again
- if the level of something falls, control systems raise it again
An example of negative feedback is the control of body temperature.
If the body gets too hot, it begins to sweat to try to reduce the temperature. If the body gets too cold, it begins to shiver to try to raise the temperature.
The glucose concentration in the blood is also controlled by negative feedback mechanisms.