Z331 Fall 2010 Week 4 Lecture 3 Intramembranous Posted

Z331 Fall 2010 Week 4 Lecture 3 Intramembranous Posted -...

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Week 4: Lecture 3: Chapter 6    The Skeletal System: Bone  Tissue: Intramembranous  Ossification
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Intramembranous Ossification Also called dermal ossification: occurs in the dermis of skin  [connective tissue layer under  epithelial layer (epidermis)] produces dermal bones such as  mandible and clavicle Figure 5-1, 154 Figure 7-3, 209 Figure 8-2, 241
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Intramembranous Ossification: Step 1 Aggregation Mesenchymal cells  aggregate: differentiate into  osteoblasts begin ossification at the  ossification center  develop projections called  spicules Figure  6–11,  192 Marieb,  6 th  ed.,  fig. 6–7,  184 Seeley, 7 th   ed., fig. 6- 11
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Intramembranous Ossification: Step 2 Connection Blood vessels grow into 
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This note was uploaded on 02/15/2011 for the course ZOOLOGY 331 taught by Professor Amyharwell during the Fall '10 term at Oregon State.

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Z331 Fall 2010 Week 4 Lecture 3 Intramembranous Posted -...

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