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Bone Response to Damage (view source)
Revision as of 11:54, 12 November 2007
, 11:54, 12 November 2007no edit summary
====Cells====
====Cells====
*Osteoblasts, osteocytes, chondroblasts and chondrocytes are derived from stromal fibroblastic system ('''osteoprogenitor cells); osteoclasts from haematopoietic system
*Osteoblasts, osteocytes, chondroblasts and chondrocytes are derived from stromal fibroblastic system ('''osteoprogenitor cells'''); osteoclasts from haematopoietic system
*Ischaemia and hypoxia favour development of cartilage
*Ischaemia and hypoxia favour development of cartilage
*High oxygen tension and good blood supply favour bone development
*High oxygen tension and good blood supply favour bone development
===Bone organisation===
===Bone organisation===
*Normal progression is from woven bone to lamellar bone, even in pathology, except for [[Bones - degenerative#Canine mandibular osteopathy|canine mandibular osteopathy]] and [[Bones - metabolic#Hypervitaminosis D|hypervitaminosis D]], where lamellar bone is replaced by woven bone
*Normal progression is from woven bone to lamellar bone, even in pathology, except for [[Bones - hyperplastic and neoplastic#Craniomandibular osteopathy|canine craniomandibular osteopathy]] and [[Bones - metabolic#Hypervitaminosis D|hypervitaminosis D]], where lamellar bone is replaced by woven bone
*Patterns of collagen deposition:
*Patterns of collagen deposition:
**'''Woven bone''':
**'''Woven bone''':