Homeostasis

What the syllabus asks of you

• Describe homeostasis as the maintenance of a 3 Explain the concept of homeostatic control by constant internal environment negative feedback with reference to a set point
• State that insulin decreases blood glucose 4 Describe the control of blood glucose concentration 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: insulation, 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