The Skeletal System 2

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The Skeletal System 2

• VS 223
• Dr. Noland

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Fun Fact A 110 lb adult humans skeleton weighs
15.5 lbs How is bone formed?
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Three types of Ossification

• Intramembranous
• Flat bones
• Heteroplastic
• Os cordis, Os penis
• Endochondral
• Long bones

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Physis

• Primary Ossification Center
• Length of bone
• Secondary Ossification Center
• Changes in the epiphysis

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Zones of Transition
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Reserve Cartilage Zone of Cartilage
Proliferation Zone of Cartilage
Maturation Hypertrophy Zone of
Degeneration Zone of Ossification
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Simple Fracture
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Compound Fracture
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Complete Fracture
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Comminuted Fracture
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Growth Plate Fracture
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Greenstick Fracture
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Stress Fracture
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Good Healing Requires

• Immobilization
• Alignment
• Time

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Fracture Repair Events

• Hematoma Formation
• Establish Blood Supply
• Callus Formation
• Remodeling

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What lies behind us and what lies before us are
small matter compared to what lies within
us R.W.E.
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Cantors Law of the Preservation of Ignorance
A false conclusion once arrived at and widely
accepted is not easily dislodged and the less it
is understood the more tenaciously it is held
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Joints
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Flexion Extension Abduction Adduction Circumductio
n Rotation
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Classification Based on of Bones Articulating
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Classification Based on Uniting Medium
Fibrous Cartilaginous Synovial
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