Biology Keywords (Circulation) 0.0 / 5 ? BiologyCirculationGCSEEdexcel Created by: lucyhayfieldCreated on: 28-03-14 22:52 What do the red blood cells transport? Oxygen. 1 of 16 What do white blood cells do? Protect against disease. 2 of 16 What do platelets do? Help the blood to clot. 3 of 16 Name 4 features of red blood cells. No nucleus, small size, fattened disc shape and contains haemoglobin. 4 of 16 Name 4 substances that plasma carries. Hormones, antibodies, waste products and nutrients. 5 of 16 What does an artery do? Pump blood away from heart at high pressure. 6 of 16 What do capillaries do? Allow exchange of materials between blood and tissues. 7 of 16 What do the veins do? Return the blood to the heart at a low pressure. 8 of 16 Which side of the heart pumps blood to the lungs? The right side. 9 of 16 Which side of the heart pumps blood to the rest of the body? The left side. 10 of 16 What are the 4 main blood vessels of the heart? Vena cava, pulmonary artery, pulmonary vien and the aorta. 11 of 16 What do the left and right atria do? Receive blood from veins. 12 of 16 What do the left and right ventricles do? Pump blood into arteries. 13 of 16 What do the valves do? Stop blood flowing backwards when heart relaxes. 14 of 16 Name 2 features of the arteries. Thick outer walls and thick layers of muscle/elastic fibres. 15 of 16 Name 3 features of the veins. Thin walls, a large lumen (inside diameter) and valves. 16 of 16
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