Describe the structure of arteries, veins and capillaries, limited to: relative thickness of wall, diameter of the lumen and the presence of valves in veins

Explain the effect of physical activity on the heart rate

Describe the functioning of the heart in terms of the contraction of muscles of the atria and ventricles and the action of the valves

Explain the importance of the septum in separating oxygenated and deoxygenated blood

Explain the relative thickness of: (a) the muscle walls of the left and right ventricles (b) the muscle walls of the atria compared to those of the ventricles

Identify in diagrams and images the atrioventricular and semilunar valves in the mammalian heart

Discuss the roles of diet and exercise in reducing the risk of coronary heart disease

Describe coronary heart disease in terms of the blockage of coronary arteries and state the possible risk factors including: diet, lack of exercise, stress, smoking, genetic predisposition, age and sex

Investigate and describe the effect of physical activity on the heart rate

State that the activity of the heart may be monitored by: ECG, pulse rate and listening to sounds of valves closing