What you’ll learn11 learning objectivesChoose one objective for a focused lesson, or study the complete topic.9.2.1Structures of the mammalian heart• Identify in diagrams and images the structures of the mammalian heart, limited to: muscular wall, septum, left and right ventricles, left and right atria, one-way valves and coronary arteriesSyllabus objective9.2.2Blood is pumped away from the heart• State that blood is pumped away from the heart in arteries and returns to the heart in veinsSyllabus objective9.2.3Activity of the heart may be monitored• State that the activity of the heart may be monitored by: ECG, pulse rate and listening to sounds of valves closingSyllabus objective9.2.4Effect of physical activity on• Investigate and describe the effect of physical activity on the heart rateSyllabus objective9.2.5Coronary heart disease in terms• 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 sexSyllabus objective9.2.6Roles of diet and exercise in reducing• Discuss the roles of diet and exercise in reducing the risk of coronary heart diseaseSyllabus objective9.2.7Atrioventricular and semilunar valves• Identify in diagrams and images the atrioventricular and semilunar valves in the mammalian heartSyllabus objective9.2.8Relative thickness of: (a) the muscle• 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 ventriclesSyllabus objective9.2.9Importance of the septum in separating• Explain the importance of the septum in separating oxygenated and deoxygenated bloodSyllabus objective9.2.10Heart function• Describe the functioning of the heart in terms of the contraction of muscles of the atria and ventricles and the action of the valvesSyllabus objective9.2.11Effect of physical activity on• Explain the effect of physical activity on the heart rateSyllabus objective