Identify in diagrams and images the main blood vessels to and from the: (a) heart, limited to: vena cava, aorta, pulmonary artery and pulmonary vein (b) lungs, limited to: pulmonary artery and pulmonary vein (c) kidney, limited to: renal artery and renal vein
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State the functions of capillaries
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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
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Explain the effect of physical activity on the heart rate
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Describe the functioning of the heart in terms of the contraction of muscles of the atria and ventricles and the action of the valves
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Explain the importance of the septum in separating oxygenated and deoxygenated blood
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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
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Identify in diagrams and images the atrioventricular and semilunar valves in the mammalian heart
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Discuss the roles of diet and exercise in reducing the risk of coronary heart disease
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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
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