Heart

11.2

What the syllabus asks of you

Identify the structures of the mammalian heart, limited to: the muscular wall, the septum, the left and right ventricles and atria, atrioventricular and semilunar valves and coronary arteries
Explain the relative thickness: (a) of the muscle walls of the left and right ventricles (b) of the muscle walls of the atria compared to those of the ventricles
Describe the functioning of the heart in terms of the contraction of muscles of the atria and ventricles and the action of the valves in a heartbeat
State that blood is pumped away from the heart in arteries and returns to the heart in veins
State that the activity of the heart may be monitored by electrocardiogram (ECG), pulse rate and listening to sounds of valves closing
Investigate and explain the effect of physical activity on heart rate
Describe coronary heart disease in terms of the blockage of coronary arteries and state the possible risk factors including diet, sedentary lifestyle, stress, smoking, genetic predisposition, age and gender
Discuss the role of diet and exercise in reducing the risk of coronary heart disease

Read the notes first

Chapter 11: Heart

Drill this topic

Every question on Heart, untimed, marked as you go.

Make a worksheet

Choose the years and how many questions, then print it with the answers on separate pages.