bones
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Created by:
henidemotta on January 11, 2011
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18 terms
Terms | Definitions |
|---|---|
 diaphysis | shaft of a long bone. compact bone outside and hollw medullary cavity. |
| medullary cavity | tubelilke hollow space in diaphysis (yellow or red marrow inside) |
| epiphyses | ends- compact outside, surrounding spongy bone which contains red marrow |
| epiphyseal line/plate | remnant of growth plate |
| periosteum | white, double layered membrane on outside of diaphysis |
| sharpeys fibers | (collegen) secure the periosteum to the bone; shin splints when they are pulled and irritated |
| endosteum | a thin membrane on the inner surface (medullary cavity); contains osteoblasts and osteoclasts |
| osteoblasts | bone builder |
| osteoclasts | bone destroyers |
| osteocytes | (mature bone cells) cells within the lacuna that maintain bone |
| haversina canal | extends lengthwise through Haversian system; contains blood vesels & nerves |
| Volkmans canals | run at right angles connecting periosteum, osteons and medullary cavity |
| lamellae | concentric rings of hard bone; clacified matrix and protein |
| lacunae | small spaced containing osteocytes and Haversian canals |
| trabeculae | latticework of needle-like bone structures;placed where stress is on the bone |
| heterotopic bone | an abnormal condition where in bone forms is unusual places; osteoblasts develop in other types of connective tissue and make bone |
| compact | dense, smooth and looks homogenous |
| spongy(concellous) | needle-like pieces called trabeculae and open spaces which contains red marrow |
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