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Difference between revisions of "Bone"
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*[http://commons.wikimedia.org/wiki/File:EpiMetaDiaphyse.jpg Bone (WC)]. | *[http://commons.wikimedia.org/wiki/File:EpiMetaDiaphyse.jpg Bone (WC)]. | ||
==Bone | ==Bone histology== | ||
Two types (based on arrangement of collagen): | Two types (based on arrangement of collagen): | ||
#Woven | # Woven bone. | ||
# Lamellar bone. | |||
#Lamellar | |||
Woven | ===Woven bone=== | ||
* | *Always abnormal in adults. | ||
*Collagen arranged haphazardly - mechanically weak. | |||
Images: | Images: | ||
*[http://www.ajnr.org/cgi/content-nw/full/27/2/274/F4 Woven bone (ajnr.org)].<ref name=pmid16484391>{{cite journal |author=Lin DD, Gailloud P, McCarthy EF, Comi AM |title=Oromaxillofacial osseous abnormality in Sturge-Weber syndrome: case report and review of the literature |journal=AJNR Am J Neuroradiol |volume=27 |issue=2 |pages=274–7 |year=2006 |month=February |pmid=16484391 |doi= |url=}}</ref> | *[http://www.ajnr.org/cgi/content-nw/full/27/2/274/F4 Woven bone (ajnr.org)].<ref name=pmid16484391>{{cite journal |author=Lin DD, Gailloud P, McCarthy EF, Comi AM |title=Oromaxillofacial osseous abnormality in Sturge-Weber syndrome: case report and review of the literature |journal=AJNR Am J Neuroradiol |volume=27 |issue=2 |pages=274–7 |year=2006 |month=February |pmid=16484391 |doi= |url=}}</ref> | ||
*[http://www.brown.edu/Courses/Digital_Path/systemic_path/bone/paget.html Woven bone (brown.edu)]. | *[http://www.brown.edu/Courses/Digital_Path/systemic_path/bone/paget.html Woven bone (brown.edu)]. | ||
===Lamellar bone=== | |||
*Collagen organized in layers (lamellae). | |||
===Woven versus lamellar=== | |||
*Easiest way to differentiate: polarize; lamellar bone has well-defined layers. | |||
==Bone cells== | ==Bone cells== | ||