| 老年大鼠切牙造牙本质细胞的超微结构变化 |
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| 引用本文： | 朱世柱,张友云.老年大鼠切牙造牙本质细胞的超微结构变化[J].解剖学杂志,1996,19(2):167-170. |
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| 作者姓名： | 朱世柱 张友云 |
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| 作者单位： | 湖北医科大学口腔解剖生理学教研室(朱世柱)，人体解剖学教研室!武汉430071(张友云，陈锡昌) |
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| 摘 要： | 应用透射电镜研究了老年大鼠切牙造牙本质细胞的超微结构变化。该细胞核出现凹陷和切迹，常染色质减少，异染色质增加。胞浆内粗面内质网扩张，变短，线粒体水肿，嵴断裂，最后空泡化，高尔基复合体由复杂到简单，最后消失。
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| 关 键 词： | 切牙 造牙本质细胞 老年鼠 超微结构 老鼠 |
CHANGES OF THE ULTRASTRUCTURE OF ODONTOBLASTS FROM AGING RAT INCISORS |
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| Zhu Shizhu,Zhang Youyun,Chen Xichang.CHANGES OF THE ULTRASTRUCTURE OF ODONTOBLASTS FROM AGING RAT INCISORS[J].Chinese Journal of Anatomy,1996,19(2):167-170. |
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| Authors: | Zhu Shizhu Zhang Youyun Chen Xichang |
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| Abstract: | The changes of the ultrastructure of the odontobksts in aging rat incisors were observed by transmission electron microscopy. The nucleus of the odontoblasts in aging rat incisors became irregular with some depressions and notchs, containing increased heterochromatins and decreased euchromatins. In the cytoplasm of the odontoblasts of aging rat incisors, rough endoplasmic reticulums were expanded and shortened, the mitochondria were swelled with fracturing crista and vacuouzation finally occurred. The Golgi complex gradually changed into simple structure and could not be found with age. The space between the odontoblasts was enlarged with varying size and shape of ring layers. The odontobksts were finally separated when connections were destroyed. |
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| Keywords: | incisor odontoblast rat |
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