Bone Repair Stages Flashcards

1
Q

Formation of Fracture

A

circulation stops - bone cells die - swelling (6-8 hrs) - phagocytes (neutrophils and macrophages) + osteoclasts remove dead tissue (7 weeks)

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2
Q

Fibrocartilaginous Callus Formation

A

mass of repair tissue (collagen and cartilage) - fibroclasts from periosteum move and produce fibers - chondroblasts produce fibrocartilage

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3
Q

Bony Callus Formation (3-4 mo)

A

fibrocartilage turns into spongy bone

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4
Q

Bone Remodeling

A

dead portions are reabsorbed by osteoclasts - compact replaces spongy - continuous cycle

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