After releasing, the polypeptide hormones or secretory granules enter easily into cerebrospinal fluid ( CSF) via the perivascular space, interspace of tissue and epithelial openings rather than directly into blood circulation through the walls of blood capillaries. 多肽激素或分泌颗粒释放后,更易经血管周隙-结缔组织间隙-囊上皮孔进入脑脊液发挥旁分泌作用,而非透过毛细血管壁直接进入血液循环。
Between parenchymal cells existed an intercellular canaliculus linking perivascular space. 实质细胞间存在与血管周隙相通的细胞间小管。
The parenchymal cells have numerous processes, whose terminals are usually found within the perivascular space and contain both clear and dense-core vesicles. 实质细胞显示了丰富的线粒体和明显的滑面内质网,也具有粗面内质网、核糖体、高尔基氏器、微管和微丝等。
The intact secretory granules ( 100~ 300nm) coated with membrane exist not only in the endings or varicosities of the unmyelinated nerve fibers but also occasionally in the perivascular space. 完整的大型膜包分泌颗粒(100~300nm),不仅大量存在于无髓神经纤维的终末或膨体内,而且也见于血管周隙内。
Conclusion Intercellular cistern, perivascular space and epithelial openings consist of the structural foundation of the chief channel for secretions of neurohypophysis releasing into CSF. 结论细胞间池-血管周隙-囊上皮孔,构成了神经垂体分泌物释放入脑脊液主渠道的结构基础。
Virchow-Robin space ( VRS), also called perivascular space, is a normal morphological structure in the central nervous system, and of some physiological and immunological implications. Virchow-Robin间隙(Virchow-Robinspaces,VRS)即血管周围间隙,是中枢神经系统内的正常形态结构,具有一定的生理和免疫功能。
The result showed that the fibers contained type ⅳ collagen were only present in the septa, blood vessel and perivascular space in cortical thymoma ( CT). 结果显示:皮质型胸腺瘤内Ⅳ型胶原阳性物质仅存在于间质、血管和血管周围间隙部位,肿瘤实质内则很少或无;
Light microscope inspection in MAN, DXM and BC groups showed lessened brain edema, slight increase of perivascular space, and occasional nerve cell pyknotic nucleus. We found on nerve cell vacuolar degeneration in DXM group. MAN,DXM,BC组脑组织水肿程度较BE组减轻,仅见少量的血管周围间隙增宽,偶有神经细胞核固缩,DXM组无神经细胞空泡样变性。
The release of small cytoplasm fragment: The long processes of the cells can protrude into the perivascular space and then the end of the processes departs from the cells, finally the cytoplasm fragments that contain secretary granules enter the sinusoid from the capillary pore. 以胞质小块释放入血窦:有突起的细胞将突起伸入血管间隙,末端与细胞脱离形成含分泌颗粒的胞质小块,经内皮窗孔进入血窦;
The pineal secretions may be released into perivascular space by perivascular surfaces or into intercellular canaliculus by canalicular surfaces. 松果体分泌物可通过结缔组织间隙面,释放入血管周隙;或通过细胞间小管面,释放入细胞间小管内。