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Where does of materials occurs in the human body ? Write any two properties of capillaries. |
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Answer» Capillaries are the smallest of the body's BLOOD vessels. They are only one cell thick, and they are the sites of the TRANSFER of oxygen and other nutrients from the bloodstream to other tissues in the body; they also collect carbon dioxide waste materials Capillaries deliver nutrients and oxygen to tissues and remove the byproducts of cellular reactions, such as carbon dioxide and water. ... Capillaries are much thinner than arteries and veins, because their WALLS are made up of only a single layer of ENDOTHELIAL cells, the flat cells that line all blood vessels. |
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