ANAT 1507 Skeletal Development

ANAT 1507 Skeletal Development - elastic Monday, July 12,...

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Development of the Skeletal System • Paraxial Mesoderm • Lateral Plate Mesoderm • Neural Crest Cells Monday, July 12, 2010
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Bone and Cartilage • Intermembranous bone formation – flat bones develop in mesenchyme within preexisting membraneous sheets • Endochondral bone formation – cartilage forms bone Monday, July 12, 2010
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Intramembaneous Ossification • Mesenchyme surrounded by membrane • osteoblasts form matrix and osteoid tissue • calcium phosphate is deposited • layers around vessels form Haversion systems • osteoblasts and osteoclasts form spongy bone Monday, July 12, 2010
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Cartilage • Mesenchyme condenses – cells become rounded chondroblasts • hyaline • fibrocartilage
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Unformatted text preview: elastic Monday, July 12, 2010 Intracartilaginous ossification (Endochondral) Diaphysis (body) epiphysis (ends) Monday, July 12, 2010 Bone Growth Occurs at epiphyseal plate (cartilage, disc) Zone of reserve cartilage Zone of proliferation (increase in number) Zone of hypertrophy (get fat) Zone of calcified cartilage (cells begin to die) Zone of resorption Monday, July 12, 2010 Joint Development Begins about week 6 and is adult-like by week 8 Fibrous Cartilagenous (hyaline or fibrous) Synovial capsule and ligaments space centrally membrane that lines the capsule and surfaces Monday, July 12, 2010...
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This note was uploaded on 11/21/2011 for the course ANAT 1507 taught by Professor Samueldemons during the Summer '10 term at Life Chiropractic College West.

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ANAT 1507 Skeletal Development - elastic Monday, July 12,...

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