ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Bone strength. Conceptual computer artwork of a skeleton lifting a weight. This can represent bone strength. Bones are rigid structures built mainly from calcium minerals. They provide structure for the human body, but a dietary intake of minerals is needed to rebuild them. A mineral deficiency, or a bone disorder, can cause degeneration of the bones, as can a lack of load-bearing activities. If the bones are not put under regular strain, the body may start to reabsorb them. Skeletal muscle (not seen) is used to move the bones.
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