紧密连接、中间连接、桥粒、缝隙连接四种细胞连接中，只要有两个或两个以上同时存在，则称连接复合体。在小肠单层柱状上皮较典型。
上皮细胞的侧面有连接复合体。
透射电子显微镜可见微绒毛、分泌颗粒、连接复合体等上皮细胞特征。
Transmission electron microscopy revealed the characteristics of epithelial cells: microvilli, secretary granules and junctional complex.
相邻成牙本质细胞间的牙本质侧有连接复合体相连，其他区域则为桥粒。
The dentin side between the odontoblasts was connected by junctional complex and the other area was connected by the desmosomes.
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