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Bones - Anatomy & Physiology (view source)

Revision as of 10:06, 18 July 2008

41 bytes removed ,  10:06, 18 July 2008
→‎Composition of Bone
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**'''Osteoblasts''': single layer of mesenchymal cells which synthesize bone extracellular matrix (ECM)
 
**'''Osteoblasts''': single layer of mesenchymal cells which synthesize bone extracellular matrix (ECM)
 
***When active, appear plump and cuboidal, with basophilic cytoplasm
 
***When active, appear plump and cuboidal, with basophilic cytoplasm
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****Produce bone matrix = '''osteoid'''
   
****Cell membranes are rich in alkaline phosphatase (ALP)
 
****Cell membranes are rich in alkaline phosphatase (ALP)
 
****Possibly involved in pumping calcium across membranes
 
****Possibly involved in pumping calcium across membranes
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