what is the difference in terms of function & structure for arteries & veins?
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Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
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Your Veins. Veins are elastic tubes, or blood vessels, that carry blood from your organs and tissues of the body back to your heart. Each vein is made up of three layers: A layer of membranous tissue on the inside.
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Capillaries carry blood away from the body and exchange nutrients, waste, and oxygen with tissues at the cellular level. Veins are blood vessels that bring blood back to the heart and drain blood from organs and limbs.
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Veins. Veins carry blood toward the heart. ... This makes the walls of veins thinner than those of arteries, which is related to the fact that blood in the veins has less pressure than in the arteries. Because the walls of the veins are thinner and less rigid than arteries, veins can hold more blood.
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Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. Arteries and veins are two of the body's main type of blood vessels.
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The heart is the key organ for blood circulation and the double circulation is an efficient way of circulation as it provides an effective way of circulation. The main difference is that the blood follows two routes – one for oxygenated blood and the other for deoxygenated blood.
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Functions of the cardiovascular system Blood circulates through a network of vessels throughout the body to provide individual cells with oxygen and nutrients and helps dispose of metabolic wastes. The heart pumps the blood around the blood vessels.
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What is the key structural difference between tracheids and vessels? Tracheids are long and thin and have pits (gaps in the secondary cell wall); vessels are short and wide and have pores (gaps in both primary and secondary cell wall).
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1. Arteries have a much thicker wall to withstand the high pressure of blood flowing in them, whereas veins have a thinner wall so that they can be pressed flat against adjacent muscles, helping to move the blood. 2. Veins have valves, contrary to arteries, to prevent back-flow of blood flowing in them.
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Arteries carry oxygenated blood, away from the heart except pulmonary artery. 2. These are mostly deeply situated in the body. ... Veins carry deoxygenated blood, towards the heart except pulmonary veins.
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"Cardio" refers to the heart, and "vascular" refers to all the blood vessels in the body. In comparison, heart disease is more specific and refers only to diseases of the heart, such as coronary artery disease, heart failure, heart valve abnormalities, and abnormal heart rhythms.
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(i) The blood from the heart is transported to all parts of the body by the arteries. ... (iii) Arteries and veins are joined by a network of capillaries. (iv) The rhythmic expansion and contraction of the heart is called heartbeat.
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One of the major difference between arteries and veins is that the arteries carry oxygenated blood to all body parts, whereas, veins carry the deoxygenated blood to the heart.
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Function. The main function of the circulatory (or cardiovascular) system is to deliver oxygen to the body tissues, whilst simultaneously removing carbon dioxide produced by metabolism. Oxygen is bound to molecules called haemoglobin that are on the surface of the red blood cells in the blood.
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Arteries have a great deal more smooth muscle within their walls than veins, thus their greater wall thickness. This is because they have to carry pumped blood away from the heart to all the organs and tissues that need the oxygenated blood. The endothelial lining of each is similar.
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['Cardiac output.', 'Peripheral vascular resistance.', 'Volume of circulating blood.', 'Viscosity of blood.', 'Elasticity of vessels walls.']
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Veins carry blood under low pressure from the capillaries and return the blood to the heart. The vein walls have thinner muscular walls than arteries and have a wider internal diameter. Veins contain valves to prevent the backflow of low-pressure blood.