Negative feedback ensures that, in any control system, changes are reversed and returned back to the set level.
negative feedback keeps our body temperature at a constant 37°C. If we get too hot, blood vessels in our skin vasodilate (become larger)
If we get too cold blood vessels in our skinvasoconstrict (become smaller)
The other factors also controlled in the body by negative feedback are:
- blood oxygen levels
- salt levels
Comments
Report