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  2. Human skeleton - Wikipedia

    en.wikipedia.org/wiki/Human_skeleton

    The axial skeleton (80 bones) is formed by the vertebral column (32–34 bones; the number of the vertebrae differs from human to human as the lower 2 parts, sacral and coccygeal bone may vary in length), a part of the rib cage (12 pairs of ribs and the sternum), and the skull (22 bones and 7 associated bones).

  3. Osteology - Wikipedia

    en.wikipedia.org/wiki/Osteology

    A subdiscipline of anatomy, anthropology, and paleontology, osteology is the detailed study of the structure of bones, skeletal elements, teeth, microbone morphology, function, disease, pathology, the process of ossification from cartilaginous molds, and the resistance and hardness of bones . [1]

  4. Bone - Wikipedia

    en.wikipedia.org/wiki/Bone

    A bone is a rigid organ [1] that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Bones come in a variety of shapes and sizes and have complex internal and external ...

  5. LRP5 - Wikipedia

    en.wikipedia.org/wiki/LRP5

    There is controversy whether bone grows through Lrp5 through bone or the intestine. [25] The majority of the current data supports the concept that bone mass is controlled by LRP5 through the osteocytes. [26] Mice with the same Lrp5 gain-of-function mutations as also have high bone mass. [27]

  6. Osteoblast - Wikipedia

    en.wikipedia.org/wiki/Osteoblast

    The functional part of bone, the bone matrix, is entirely extracellular. The bone matrix consists of protein and mineral. The protein forms the organic matrix. It is synthesized and then the mineral is added. The vast majority of the organic matrix is collagen, which provides tensile strength. The matrix is mineralized by deposition of ...

  7. Osteocyte - Wikipedia

    en.wikipedia.org/wiki/Osteocyte

    Most of the receptor activities that play an important role in bone function are present in the mature osteocyte. [6] Osteocytes are an important regulator of bone mass. [15] [16] Osteocytes contain glutamate transporters that produce nerve growth factors after bone fracture, evidence of a sensing and information transfer system. [6]

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  9. Osteoclast - Wikipedia

    en.wikipedia.org/wiki/Osteoclast

    The function of these cysteine and aspartic proteases is generally unknown within bone, and they are expressed at much lower levels than cathepsin K. Studies on cathepsin L knockout mice have been mixed, with a report of reduced trabecular bone in homozygous and heterozygous cathepsin L knockout mice compared to wild-type and another report ...