Topic 5 - Homeostasis and Response

Homeostasis - Maintaining a Stable Internal Environment.

1) The conditions inside your body need to be kept steady, even when the external environment changes.

2) This is really important because your cells need the right conditions in order to function properly including the right conditions for enzyme action.

3) Homeostasis is all about the regulation of the conditions inside your body (and cells)to maintain a stable internal environment, in response to changes in both internal and external conditions.

4) Loads of Automatic Control Systems in the body that regulate a body's internal environment - both nervous and hormonal communication systems. There are control systems that maintain your body temperature, your blood glucose level and your water content.

5) All your automatic control systems are made up of three…