Bone
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This article is about the skeletal organs. For the tissue, see Osseous tissue. For other uses, see Bone (disambiguation).

Drawing of a human femur.Bones are rigid organs that form part of the endoskeleton of vertebrates. They function to move,
support, and protect the various organs of the body, produce red and white blood cells and store minerals. Because bones
come in a variety of shapes and have a complex internal and external structure, they are lightweight, yet strong and hard, in
addition to fulfilling their many other functions. One of the types of tissues that makes up bone is the mineralized osseous tissue,
also called bone tissue, that gives it rigidity and honeycomb-like three-dimensional internal structure. Other types of tissue
found in bones include marrow, endosteum and periosteum, nerves, blood vessels and cartilage. There are 206 bones in the
adult human body[1] and about 270 in an infant.[2]
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