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Bone is a mineralized connective tissue. It contains cells that deposit collagen and release magnesium, phosphate and calcium ions that form a substance called bone mineral. It causes bone to be strong and flexible as well. In bone, there is a repeating structure called a Haversian system. This contains layers of mineralized matrix which are deposited around a central canal called the Haversian canal. Within this canal, is a nerve and a blood supply. Bone, like other tissue in the body requires oxygen as well as nutrients and waste removal. The purpose of the blood vessels is to provide those things to the bone, via the circulating blood. Bone marow, which is found within the spongy bone tissue, has the role of manufacturing new blood cells.
Bone marrow in bones contains stem cells that produces red blood cells, white blood cells and platelets. Bones store minerals and lipids. Therefore the blood vessels main function is to make travel blood throughout the body including blood cells and minerals etc. In short blood vessels supply blood and oxygen etc to all living tissues.
They supply oxygen and nutrients to bone cells, just like they do to the rest of the body. They are also responsible for wste disposal
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