Artery - A blood vessel that takes blood away from the heart, Vein - Ablood vessel that takes blood towards the heart, Capillaries - Tiny blood vessels which can pick up waste from the cells and drop of materials to the cellss, Heart - Is made of cardiac muscle and has four chambers, Left atrium - receives oxygenated blood from the lungs, Left ventricle - pumps oxygentated blood from the heart round the body, Septum - Separates the left and right side of the heart, Right atrium - receives deoxygenated blood from the body, Right ventricles - pumps deoxygenated blood from the heart to the lungs, Aorta - The main artery taking blood away from the heart, Vena cava - the main vein returning deoxygenated from the body to the heart, Pulmonary artery - carries deoxygenated blood from the right ventricle to the lungs, Pulmonary vein - carries oxygenated blood from the lungs to the left atrium, Semi lunar valves - prevent the back flow of blood from the ventricle to the atria, Bicuspid valve - prevents the back flow of blood from the aorta into the left ventricle, Tricuspid valve - prevents the backflow of blood from the pulmonary artery into the right ventricle, Red blood cells (eurythrocytes) - carries oxygen in the blood, White blood cells (leucocytes) - help the body to fight infection, Plasma - liquid part of the blood, carries dissolved nutrients and other materials, Platelets - allows the blood to clot if blood vessel damaged,

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