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bone: Quick Facts

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Photos and Videos

Internal structure of a human long bone
X-ray of a human shoulder showing the rounded epiphysis of the humerus, the scapula, and part of the ribcage against a black background.
Diagram illustrating the stages of bone remodeling, showing bone-lining cells, osteoclasts breaking down bone, mononuclear cells, osteoblasts building new bone, osteocytes embedded in bone, and the transition from old to new bone.
Cross-sectional diagram of a human long bone showing labeled regions involved in bone growth and remodeling, including the growth plate, ossification centers, bone marrow, and areas where bone is added or resorbed.
avain bone cross-section
An anatomical illustration of the human hand and wrist bones from a dorsal view, showing labeled carpal bones, metacarpal bones, and the proximal, middle, and distal phalanges of each finger.
Labeled anatomical illustration of the human foot skeleton from a top-down (dorsal) view, showing the calcaneus, talus, tarsal bones, metatarsals, and phalanges with color-coded bone groups.
Examine how a composite of collagen proteins and calcium can support a load of one ton
How do our bones grow and develop?
Examine X-rays of broken bones mending themselves and see how important it is to exercise and eat right
How marine research can improve osteoporosis diagnosis
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Key People

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Volcher Coiter
Dutch physician
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Johan Gottlieb Gahn
Swedish mineralogist

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