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FRUCTURE OF BONE
Bones
| Question | Answer |
|---|---|
| WHAT IS A FRACTURE OF A BONE | ITS IS A BREAK IN A BONE |
| WHAT IS A SIMPLE FRACTURE | END OF BONE DOES NOT PENETRATE THROUGH SKIN |
| WHAT IS A COMPOUND FRACTURE | END OF BONE PENETRATES THROUGH SKIN |
| A REDUCTION IN A BONE IS A | REALIGNMENT OF BONE ENDS |
| REDUCTION OF BONE REQUIRES IMMOBILIZATION FOR HOW LONG | 8 TO 12 WEEKS |
| WHO WOULD DO REALIGNMENT OF BONE ENDS | A PHYSICIAN OR SURGEON |
| THINGS THAT OCCUR AT FRACTURE SITE TO CAUSE REPAIR | 1. HEMATOMA - CAUSES INFLAMMATION, SWELLING AND CLOT FORMATION 2.FIBROCARTILIAGE (SOFT) CALLUS |
| BLOOD LOSS AT FRACTURE SITE WOULD CAUSE | BLOOD VESSEL DAMAGE (HEMATOMA) |
| THINGS THAT OCCUR AT A FRACTURE SITE TO CAUSE REPAIR | 1. HEMATOMA FORMATIION - DAMAGED BLOOD VESSELS & BLOOD LOSS AT SITE OF FRACTURE 2. FIBROCARTILAGE (SOFT) CALLUS - SPLINTS BONE ENDS 3. BONY CALLUS - FIBROCARTILAGE REPLACED BY SPONGY BONE 4. REMODELING OF BONY CALLUS |
| WHAT CAUSES HEMATOMA IN A FRACUTURE | DAMAGED TO BLOOD VESSELS & BLOOD LOSS AT FRACTURE SITE |
| HEMATOMA FORMATION LEADS TO | INFLAMMATION, SWELLING AND CLOT FORMATION |
| AS THE FIBROCARTILAGE CALLUS SPLINTS END OF THE BONE WHAT GROWS INTO CLOT | CAPILLARIES |
| WHAT TISSUES FORM IN A FRACTURE | DENSE CONNECTIVE TISSUE, HYALINE CARTILAGE, FIBROCARTILAGE |
| AS THE FRIBROCARTILAGE CALLUS IS LAID DOWN TO SPLINT THE BONE ENDS | PHAGOCYTES CLEAN UP DEBRIS LEFT BEHIND FROM THE FRACTURE |
| DURING STAGE 3 OF BONY CALLUS FORMATION WHAT OCCURS | SPONGY BONE REPLACES FIBROCARTILAGE CALLUS |
| FOR SPONGY BONE TO OCCURS,___________ SECRETES ___________ | OSTEOBLAST & OSTEOD MATRIX |
| WHAT FORMS ACROSS BREAK DURING THE BONY CALLUS FORMATION | TRABECULAE OF SPONGY BONE |
| THE FOURTH PHASE OF FRACTURE REPIAR IS CALLED | REMODELING OF BONY CALLUS |
| DURING THE REMODELING OF BONY CALLUS WHAT OCCURS | EXCESS BONE IS REMOVED AT THE EXTERNAL SURFACE AND IN THE MEDULLARY CAVITY WALL |
| REMODELING OF THE BONY CALLUS ULTIMATELY LEADS TO | SPONGY BONE IN SHAFT BEING REPLACED BY COMPACT BONE |