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Bone Anatomy
6.3--Anatomy of a Bone
Term | Definition |
---|---|
DIAPHYSIS | SHAFT; MAIN PORTION OF BONE |
EPIPHYSES | EXTREMETIES |
METAPHYSES | BETWEEN DIAPHYSIS AND EPIPHYSIS; IN GROWING BONE CONTAINS EPIPHYSEAL GROWTH PLATE--A LAYER OF CARTILAGE THAT ALLOWS DIAPHYSIS TO GROW |
ARTICULAR CARTILAGE | HYALINE CARTILAGE COVERING PART OF EPHYSIS WHERE BONE FORMS AN ARTICULATION WITH ANOTHER BONE |
PERIOSTEUM | TOUGH CONNECTIVE TISSUE SHEATH WITH BLOOD SUPPLY THAT SURROUNDS BONE SURFACE; OUTER FIBROUS LAYER OF DENSE IRREGULAR AND INNER OSTEOGENIC LAYER OF CELLS. PROTECTS BONES, ENABLES GROWTH, NOURISHMENT , AND REPAIR. |
PERFORATING FIBERS | THICK BUNDLES OF COLLAGEN THAT EXTEND FROM PERIOSTEUM INTO BONE ECM |
MEDULLARY CAVITY (MARROW CAVITY) | HOLLOW SPACE WITH YELLOW BONE MARROW AND BLOOD VESSELS. MINIMIZES WEIGHT OF BONE. |
ENDOSTEUM | THIN MEMBRANE LINES MEDULLARY CAVITY |