Homeostasis

1 Describe homeostasis as the maintenance of a constant internal environment

2 State that insulin decreases blood glucose concentration

3 Explain the concept of homeostatic control by negative feedback with reference to a set point

4 Describe the control of blood glucose concentration by the liver and the roles of insulin and glucagon

5 Outline the treatment of Type 1 diabetes

6 Identify in diagrams and images of the skin: hairs, hair erector muscles, sweat glands, receptors, sensory neurones, blood vessels and fatty tissue

7 Describe the maintenance of a constant internal body temperature in mammals in terms of: insulin, sweating, shivering and the role of the brain

8 Describe the maintenance of a constant internal body temperature in mammals in terms of vasodilation and vasoconstriction of arterioles supplying skin surface capillaries