THE FINE STRUCTURE OF THE GASTRIC MUCOSA IN THE BAT
THE FINE STRUCTURE OF THE GASTRIC MUCOSA IN THE BAT
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蝙蝠胃粘膜的精细结构
DOI：
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发表时间：
1963
影响因子：
7.8
通讯作者：
R. Winchester
中科院分区：
文献类型：
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作者：
S. Ito;R. Winchester
胃粘膜的细胞学的描述提出了蝙蝠胃的电子显微镜调查的基础上。该物种中各种细胞类型的精细结构与其他哺乳动物的相应细胞类型基本相似，但相对细胞数量和分布略有不同。（一）.表面粘液细胞通过其表面位置和其致密分泌颗粒的特征来识别。（B）。颈粘液细胞的特征在于其粘液颗粒的不同外观和分布，以及它们的不同形状和它们在壁细胞之间的位置。（c）.壁细胞非常大，有异常突出的分泌小管和大量的大线粒体。（d）.主细胞位于胃腺基部，其精细结构与其他产酶细胞相似。它们含有许多大的酶原颗粒，并具有广泛发育的颗粒内质网。后者有时聚集在不寻常的、六角形排列的直小管中，每个小管有12排纵向的核糖体，它们均匀地分布在其周围，并且核糖体的排与相邻小管的排精确地对齐。（e）.位于其他细胞类型之间的亲嗜中性细胞在线粒体结构和特定颗粒的特征方面差异很大，这表明它们不止一种。大多数位于上皮的基部，但也有一些延伸到管腔，并在其游离表面上带有微绒毛。
A description of the cytology of the gastric mucosa is presented based upon an electron microscopic investigation of the bat stomach. The fine structure of the various cell types in this species is fundamentally similar to that of the corresponding cell types of other mammals, but the relative cell numbers and distribution are somewhat different. (a). The surface mucous cells are identified by their superficial location and by the character of their dense secretory granules. (b). The mucous neck cells are distinguished by a characteristically different appearance and distribution of their mucous granules, and by their varied shape and their location between parietal cells. (c). The parietal cells are very large and have unusually prominent secretory canaliculi and an extraordinary number of large mitochondria. (d). The chief cells are found at the base of the gastric glands and are similar in their fine structure to other zymogenic cells. They contain many large zymogen granules and have an extensively developed granular endoplasmic reticulum. The latter is sometimes aggregated in unusual, hexagonally packed straight tubules, each with twelve longitudinal rows of ribosomes uniformly spaced around its circumference and with the rows of ribosomes in precise register with those of adjoining tubules. (e). Argentaffin cells lodged between other cell types vary sufficiently in the structure of their mitochondria and the character of their specific granules to suggest that they are of more than one kind. The majority are at the base of the epithelium but some extend to the lumen and bear microvilli on their free surface.