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Hello students, elastic artery are those which are nearest to the heart.
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These are flexible enough to keep blood flowing steadily.
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This is because this artery contain much more elastic tissue in the tunica media than muscular arteries.
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Next is continuous capillary which are generally found in nervous system.
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They are also found in fat and muscle tissue.
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Within nervous tissue, these continuous capillaries form blood barrier which limits the movement of cells and large molecules between the blood and the interstitial fluid surrounding the brain.
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Next is the large vein whose function is to carry blood from head, neck, arms and chest to the heart.
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Next is muscular artery.
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This type of artery distributes blood to various parts of organs and tissues.
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The walls of this muscular arteries have a great number of smooth muscles.
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Next is fenestrated capillaries.
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These are tiny blood vessels.
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They have little holes or you can say pores which increase the flow of nutrients and waste and other substances.
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They allow them to move from the capillaries to the organs which are surrounding them.
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Next is small vein.
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This vein receives blood from capillaries.
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They play a vital role in exchange of oxygen and nutrients for water products.
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There are post capillary sphincters which are located between the capillaries and venules also known as small veins.
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Next is medium vein.
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These veins helps to keep the blood flow flowing towards the heart.
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The walls of this medium veins specifically important in the arms and legs where they prevent the flow of blood in response to the pull of gravity.
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Next is arterioles...