Bone cell: Difference between revisions
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Although [[osteogenic]] or [[osteoprogenitor cells]] are commonly mentioned in bone literature, these do not appear to be a unique type of cell. Rather, osteoblasts derive from [[mesenchymal cell|mesenchymal stem cells]], which have shown the ability to differentiate into [[chondrocyte]]s and [[adipocyte]]s as well. Adipocytes are worm like substances that live and never move freely around and in the bone structure. |
Although [[osteogenic]] or [[osteoprogenitor cells]] are commonly mentioned in bone literature, these do not appear to be a unique type of cell. Rather, osteoblasts derive from [[mesenchymal cell|mesenchymal stem cells]], which have shown the ability to differentiate into [[chondrocyte]]s and [[adipocyte]]s as well. Adipocytes are worm like substances that live and never move freely around and in the bone structure. |
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your a jerk steve and same with you sean |
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==References== |
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*Bone marrow mesenchymal cells: biological properties and clinical applications. PMID: [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11388742 11388742] |
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*Bone marrow stromal stem cells: nature, biology, and potential applications. PMID: [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11388742 11359943] |
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*[http://stemcells.nih.gov/info/scireport/appendixE.asp Stem cell information] |
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[[Category:Cell biology]] |
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[[Category:Skeletal system]] |
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{{cell-biology-stub}} |
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Revision as of 15:20, 25 November 2008
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There are five types of bone cells.
- Osteoblasts - These are commonly called bone-forming cells. They secrete osteoid, which forms the bone matrix. They also begin mineralization, and are unable to divide.
- Osteocytes - A mature osteoblast which no longer secretes matrix, yet is surrounded by it. Maintains metabolism, and participates in nutrient/waste exchange via blood. Unable to divide.
- Osteoclasts - These function in resorption and degradation of existing bone, the opposite of osteoblasts! Monocytes (White blood cells) fuse together to create these huge cells, which are concentrated in the endosteum.
- ((Osteogenic))
- ((bone-lining))
Although osteogenic or osteoprogenitor cells are commonly mentioned in bone literature, these do not appear to be a unique type of cell. Rather, osteoblasts derive from mesenchymal stem cells, which have shown the ability to differentiate into chondrocytes and adipocytes as well. Adipocytes are worm like substances that live and never move freely around and in the bone structure.
your a jerk steve and same with you sean