5. Transport in humans

5.1 The structure of the circulatory system

• Describe the structure of the circulatory system

• Describe the function of arteries, veins and capillaries

• Describe how arteries, veins and capillaries are adapted to their functions

5.2 Blood

• State the components of blood

• Describe the functions of plasma, red blood cells, haemoglobin, white blood cells and platelets

5.3 The structure of the heart

• Describe the structure of the heart

• Describe how blood passes through the heart and the path it takes

5.4 Cardiovascular disease

• Discuss causes, symptoms and treatments of coronary heart disease (CHD) and high blood pressure.

• Suggest ways that a person could help reduce their risk of having a heart attack.