The Heart 0.0 / 5 ? BiologyCirculationGCSEOCR Created by: GraceLongCreated on: 24-05-16 16:39 Name the chambers that receive blood. Atria 1 of 17 What is the name of the chambers that pump blood to the body? Ventricles 2 of 17 What do valves do? They prevent backflow when the heart relaxes to maintain blood pressure 3 of 17 Where does the pulmonary artery take deoxygenated blood? The lungs 4 of 17 In what state is blood when it enters the heart from the pulmonary vein? Oxygenated 5 of 17 Which blood vessel brings deoxygenated blood from the body? Vena cava 6 of 17 Where does the aorta take oxygenated blood? The body 7 of 17 Why does the right ventricle have thinner walls than the left ventricle? The right ventricle only has to pump blood to the lungs whereas the left ventricle has to pump blood all the way around the body at higher pressure 8 of 17 Is the bicuspid valve in the left or the right side of the heart? Left 9 of 17 What do you have to remember about diagrams of the heart on paper? They are the opposite way around e.g. the right side of the heart is on the left in the diagram 10 of 17 Why are coronary arteries important? They supply the heart with food and oxygen 11 of 17 What do pacemakers do to help the heart? They can help it beat if there is a problem with the heart 12 of 17 Explain the double circulatory system in humans. One circuit links the heart and the lungs; the other circuit links the heart and the body 13 of 17 What is the advantage of the heart having two pumps? Blood to the body can be pumped at a higher pressure than the blood being pumped to the lungs 14 of 17 Do veins carry blood away or towards the heart? Towards 15 of 17 In general, do arteries carry oxygenated or deoxygenated blood? Oxygenated 16 of 17 How are capillaries adapted to their function? They have permeable walls so substances can be transferred between blood and tissue 17 of 17
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