ISSN: 1758-4272

International Journal of Clinical Rheumatology

Bone Peeerrrrr Reviewww

 A bone is a rigid organ that constitutes part of the vertebrate skeleton in animals. Bones protect the various organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. ... More than 99 percent of the body's calcium is contained in the bones and teeth. The remaining 1 percent is found in the blood. The major bones of the arms (humerus, radius, and ulna) and the legs (the femur, tibia, and fibula) are all long bones. ... The flat bones include the scapula (wingbone), the ribs, and the sternum (breastbone). Irregular bones: Irregular bones are irregular in size and shape and are usually quite compact. The long bones are those that are longer than they are wide. They are one of five types of bones: long, short, flat, irregular and sesamoid. Long bones, especially the femur and tibia, are subjected to most of the load during daily activities and they are crucial for skeletal mobility. Flat bones are bones whose principal function is either extensive protection or the provision of broad surfaces for muscular attachment. These bones are expanded into broad, flat plates, as in the cranium (skull), the ilium (pelvis), sternum and the rib cage. ... In an adult, most red blood cells are formed in flat bones  

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