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Bone fractures

What is a fracture? Cracks or breaks in bones due to physical stress
Compound fracture Open fracture
Simple fracture Closed fracture
How are fracture repaired? 1. Fracture hematoma formation 2. Callus formation 3. Spongy bone formation 4. Compact bone formation
How does fracture hematoma formation happen? -production of a large blood clot between bone fragments -fibroblasts, chondrablasts and osteoblasts establish a fibrous network -bone cells in the area die
Callus formation -cells of endosteum and periosteum ducks and migrate into fracture zone to create soft callus -callus stabilize the break and bridge bone fragments together
Spongy bone formation -osteoblasts replace Central cartilage of external callus with spongy bone and begin to form a bone (hard) callus
Compact bone formation -bone callus is remodeled and replaced with secondary bone -repaired bone may be slightly thicker and stronger than normal
Created by: Garciamentzer



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