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BONE FORMATION
BONES
| Question | Answer |
|---|---|
| BONE FORMATION IS CALLED | OSSIFICATION |
| PERIOD OF OSSIFICATION | EMBRYO TO ADULT |
| WHAT IS OMBRYO SKELETON COMPOSE OF | FIBROUS CONNECTIVE TISSUE MESENCHYME HYALINE CARTILAGE |
| OSSIFICATION CREATES CHANGES IN SKELETON STRUCTURE in which way | REPLACES FIBROUS CONNECTIVE TISSUE AND CARTILAGE WITH BONES |
| WHEN DOES OSSTIFICATION BEGINS IN EMBRYO | AT 8 WKS |
| 2 TO TYPE OF OSSTIFICATIONS | INTRAMEMBRANOUS OSSTIFICATION ENDOCHONDRIAL OSSTIFICATION |
| WHERE DOES INTRAMEMBRANOUS OSSTIFICATION OCCUR | BONE FORMS WITHIN FIBROUS CONNECTIVE TISSUE |
| WHICH 2 PLACES DOES INTRAMEMBRANOUS OSSIFICATION OCCUR | SURFACE OF SKULL AND CLAVICLES |
| WHAT FORMS OSSTIFICATION CENTER | CLUSTERS OF OSTREOBLAST |
| OSTEOBLAST SECRETES | OSTEOID MATRIX WITH COLLAGEN FIBERS |
| WHAT HELPS FORM SPONGY BONE | CALCIUM DEPOSITED IN OSTEOID BTW BV |
| WHERE DOES COMPACT BONE GROWS | AT SURFACE |
| MESENCHYME SURROUNDING COMPACT BONE BECOMES | PERIOSTEUM |
| WHAT BONES UNDER-GO ENDOCHONDRIAL OSSTIFICATION | ALL BONES EXCEPT SKULL |
| CARTILAGE BONE MODEL REPLACED BY BONE THRU WHICH OSSTIFICATION | ENDOCHONDRIAL OSSTIFICATION |
| WHAT SURROUNDS CARTILAGE MODEL | PERIOSTEUM |
| WHERE IS BONE COLAR DEPOSITED | AROUND SHAFT OF BONE MODEL |
| PRIMARY OSSTIFICATION CENTER FORMS WHAT | DIAPYSIS |
| AFTER PRIMARY OSSTIFICATION CENTER ENDS | CARTILAGE CELLS IN DIAPHYSIS DIES AND MATIX DISINTEGRATES |
| WHAT REMODELS DIAPYSIS INTERIOR DURING PRIMARY OSSIFIFCATION | OSTEOBLAST/OSTEOCLAST |
| THIS REMODELING DONE BY OSTEOBLAST AND OSTEOCLAST FORMS | SHAFT WALL AND MEDULLARY CAVITY IN THE DIAPHYSIS |
| WHAT FORMS SPONGY BONE IN EPIPHYSIS | SECONDARY OSSTIFICATION CENTERS |
| EPIPHYSEAL PLATE | INCREASES LENGTH |
| EPIPHYSEAL PLATE IS FORMED BY | HYALINE CARTILAGE AT JUNCTION OF DIAPHYSIS AND EPIPHYSIS IN LONG BONE |
| WHERE IS EPIPHYSEAL PLATE LOCATED | AT JUNCTION OF DIAPHYSIS AND EPIPHYSIS IN LONG BONE |
| WHERE IS NEW CARTILAGE FORMS WHERE | ON EPIPHYSIS SIDE OF PLATE |
| WHAT HAPPENDS ON THE DIAPHYSIS SIDE OF THE PLATE | BONE REPLACES CARTILAGE |
| HOW IS DOES EPIPHSEAL PLATE THICKNESS REMAINS CONSTANT | BECAUSE IT IS REPLACE AT THE SAME RATE |
| ELONGATION OF EPIPHYSEAL PLATE CONTINUES UNTIL | EARLY ADULT |
| WHEN ELONGATION OF EPIPHYSEAL PLATE IS STOPPED | LONG GROWTH STOPS ALSO |
| WHEN ELONGATION STOPS WHAT OCCURS | EPIPHYSEAL CARTILAGE IS REPLACED BY BONE |
| WHAT FORMS WHEN EPIPHYSEAL CARTILAGE IS REPLACE BY BONE | EPIPHYSEAL LINE |
| DURING ENDOCHONDRIAL OSSTIFICATION BONE WILL WIDEN AS | THEY LENGTHEN |
| ANOTHER TERM FOR BONE LENGHT IS | APPOSITIONAL GROWTH |
| WHAT ADDS BONE TO EXTERIOR SURFACE | OSTEOBLASTS |
| WHAT REMOVES BONE FROM INTERIOR SURFACE | OSTEOCLASTS |
| ADDING BONE TO EXTERIOR SURFACE AND REMOVING FROM INTERIOR SURFACE OCCURES | AT THE SAME RATE |
| WHEN ADDING BONE TO EXTERIOR AND INTERIOR SURFACE ALSO OCCURS | WIDTH OF BONE INCREASES |