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  2. Bone - Wikipedia

    en.wikipedia.org/wiki/Bone

    Modified (flattened) osteoblasts become the lining cells that form a protective layer on the bone surface. The mineralised matrix of bone tissue has an organic component of mainly collagen called ossein and an inorganic component of bone mineral made up of various salts. Bone tissue is mineralized tissue of two types, cortical bone and ...

  3. Osteoblast - Wikipedia

    en.wikipedia.org/wiki/Osteoblast

    The active osteoblast produces substantial collagen type I. About 10% of the bone matrix is collagen with the balance mineral. [29] The osteoblast's nucleus is spherical and large. An active osteoblast is characterized morphologically by a prominent Golgi apparatus that appears histologically as a clear zone adjacent to the nucleus. The ...

  4. Collagen - Wikipedia

    en.wikipedia.org/wiki/Collagen

    Vitamin C is vital for collagen synthesis, while Vitamin E improves its production. HCR- FISH visualization of collagen expression in the Iberian ribbed newt Depending on the degree of mineralization , collagen tissues may be rigid (bone) or compliant (tendon) or have a gradient from rigid to compliant (cartilage).

  5. Ossification - Wikipedia

    en.wikipedia.org/wiki/Ossification

    The canal of the nutrient foramen is directed away from more active end of bone when one end grows more than the other. When bone grows at same rate at both ends, the nutrient artery is perpendicular to the bone. Most other bones (e.g. vertebrae) also have primary ossification centers, and bone is laid down in a similar manner. Secondary centers

  6. Hard tissue - Wikipedia

    en.wikipedia.org/wiki/Hard_tissue

    Bone is an active tissue composed of different cells. Osteoblasts are involved in the creation and mineralisation of bone; osteocytes and osteoclasts are involved in the reabsorption of bone tissue. The mineralised matrix of bone tissue has an organic component mainly of collagen and an inorganic component of bone mineral made up of various salts.

  7. 10 great nutritional supplements for winter - AOL

    www.aol.com/10-great-nutritional-supplements...

    Maintaining optimal blood levels of 25-hydroxy vitamin D is important year-round, and can be even more of a challenge to maintain during the winter, when your vitamin D levels likely will be affected.