ULTRASTRUCTURE OF DUCT SYSTEM IN RAT EXTRAORBITAL LACRIMAL GLAND
ULTRASTRUCTURE OF DUCT SYSTEM IN RAT EXTRAORBITAL LACRIMAL GLAND
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DOI：
10.1007/bf00307373
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发表时间：
1973-01-01
期刊：
影响因子：
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通讯作者：
VANLENNE.EW
中科院分区：
文献类型：
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作者：
ALEXANDER, JH;YOUNG, JA;VANLENNE.EW
大鼠眶外泪腺的导管系统由眶间管、小叶间管和排泄管组成。从一种导管到另一种导管的形态变化是渐进的。在光镜下，这包括从插入导管的双层上皮到排泄导管的上皮的变化，上皮由大约三层组成，可能是假分层的。插管的基底层由肌上皮细胞组成，而内上皮细胞可能同时具有分泌和电解质运输功能。小叶间管上皮含有许多基底外侧质膜和相关线粒体的深包络细胞，提示其功能与唾液腺的条纹管上皮相似。该上皮中大量的基底细胞被初步解释为不寻常的肌上皮细胞。导管上皮内可见神经末梢。
The duct system of the rat exorbital lacrimal gland consists of intercalated ducts, interlobular ducts and excretory ducts. The morphological changes from one type of duct to the next are gradual. At the light microscopical level this consists of a change from a bilaminar epithelium in the intercalated ducts to an epithelium, consisting of approximately three layers — which may be pseudostratified — in the excretory ducts. The basal layer of the intercalated ducts consists of myoepithelial cells, whereas the inner epithelial cells may have both a secretory and an electrolyte transporting function. The interlobular duct epithelium contains many cells with deep infoldings of the basolateral plasma membranes and associated mitochondria, suggesting a similar function to the striated duct epithelium in salivary glands. Numerous basal cells in this epithelium have tentatively been interpreted as unusual myoepithelial cells. Nerve terminals have been observed in the ductal epithelium.