2. Ossification

Aug 19, 2020 · 2m 19s
2. Ossification
Description

BONE FORMATION / OSSIFICATION :- INTRAMEMBRANEOUS- within membrane  Ossification takes place in the membranes of connective tissue.  Cells in the membrane differentiate into osteoblasts,  A collagen matrix...

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BONE FORMATION / OSSIFICATION :-

INTRAMEMBRANEOUS- within membrane
 Ossification takes place in the membranes of connective tissue.
 Cells in the membrane differentiate into osteoblasts,
 A collagen matrix is formed, which undergoes ossification
 So basically, these bone is formed from collagen matrix.
 Mostly flat Bones: maxilla, majority of mandible & cranial vault*

ENDOCHONDRAL – within cartilage
 Bone formation takes place From within a hyaline cartilage
 Cartilage cells are replaced by bone cells,ie. osteocytes replace chondrocytes.
 short and long bones are formed this way
 ethmoid, sphenoid, occipital (synchondrosis of bones of cranial base*)
 Some part of mandible (condylar head region)
 MANDIBLE BONE FORMATION IS BY BOTH endochondral + intramembraneous
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Information
Author Dr.Mayakha Mariam
Organization Dr.Mayakha Mariam
Website -
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