Functions of Bone

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Functions of Bone
Structural
Rigid framework to support body weight
Serve as levers for skeletal muscles
Protect vulnerable viscera
Physiological
Bone marrow and blood formation
Calcium and phosphorous homeostasis
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Composition of Bone
Organic
Inorganic
5
95
Osteopetrosis
Rickets
80
20
Normal
35
65
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Haversian System
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Intermembranous
Bone Development (types of ossification)
Intercartilagenous or Endochondral
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Intermembranous Ossification
osteogenic fibers
two spicules joining
calcium deposits
osteoblasts
bony spicules
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Endochondral Ossification
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Epiphyseal Plate
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Growth Plate
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Developmental Defects
Osteopetrosis
Osteogenesis Imperfecta
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mesenchyme
myotube
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Division Model
Fusion Model
myoblasts