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Fractures & Healing

Quiz

QuestionAnswer
Spiral Fracture A ragged break occurs when excessive twisting forces are applied to a bone.
Depressed Fracture Broken bone portion is pressed inward; common in skull fractures.
Compression Fracture Bone is crushed; common in porous bones like vertebrae.
Greenstick Fracture Bone bends and cracks on one side an incomplete break; common in children.
Impacted Fracture Broken bone ends are forced into each other.
Comminuted Fracture A break in which the bone shatters into many fragments.
Closed (Simple) Fracture A fracture where the bone breaks cleanly and does not penetrate the skin.
Open (Compound) Fracture A fracture where the bone ends penetrate through the skin
Hematoma Formation (Stage 1 of Bone Healing) - Blood vessels are ruptured - Blood-filled swelling (hematoma) forms at the break site.
Fibrocartilage Callus Formation (Stage 2 of Bone Healing) - New capillaries grow into the damaged area - Phagocytes dispose of dead tissue - Fibrocartilage callus forms and splints broken bone
Bony Callus Formation (Stage 3 of Bone Healing) - Osteoblasts and osteoclasts move to area and divide - Bony Callus, composed of spongy bone replaces the fibrocartilage callus
Bone Remodeling (Stage 4 of Bone Healing) - Over weeks to months - Bony callus, is remodeled over weeks to months due to mechanical stress - Strong, permanent "patch" forms
Osteoblast Cells that build new bone tissue by secreting bone matrix; important during bone growth and healing.
Osteoclast Cells that break down bone tissue; help remodel bone and release calcium into the blood.
Osteocyte Mature bone cells that maintain bone tissue and monitor mechanical stress within the bone.
Periosteum A dense layer of connective tissue surrounding the bone
Bone Remodeling The continuous process where old bone tissue is broken down and new bone tissue is formed to maintain strength and shape.
Fracture Callus The temporary repair tissue formed between broken bone ends; later replaced by bony callus.
Created by: user-1982482
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