骨单位：呈圆筒状，又称哈弗斯系统，是长骨骨干的主要结构单位，位于内.外环骨板之间，数量多。骨单位的中轴为一条纵行的小管，称中央管，在中央管的周围有4~20层同心圆排列的骨板。
目的探讨丛状骨和骨单位带的种属特征及其法医学应用价值。
Objective to explore the applicability of the histological features of plexiform bone and osteon banding to species identification.
目的评估双膦酸盐的长期应用对骨单位的次级矿化程度的影响。
Objective To evaluate the effects of long-term bisphosphoate(incardronate)administration on the mean degree of secondary mineralization in bone.
结果内、外环骨板，骨单位，骨细胞的显微镜下的结构，人类与动物存在明显差别。
Result There were the different histological characters between human bone and animal bone in the outer and inner circumferential lamellae, interstitial lamellae , osteons, bone lacuna.
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