| 中华鳖胃黏膜和胃腺上皮细胞的超微结构 |
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| 引用本文： | 苏泽红,陈晓武,陈秋生.中华鳖胃黏膜和胃腺上皮细胞的超微结构[J].南京农业大学学报,2004,27(3):139-141. |
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| 作者姓名： | 苏泽红 陈晓武 陈秋生 |
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| 作者单位： | 南京农业大学动物医学院,江苏,南京,210095 |
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| 摘 要： | 用透射电子显微镜观察15只健康中华鳖的胃黏膜上皮和腺上皮细胞的超微构造。结果显示，胃黏膜上皮为单层高柱状，细胞上部胞质中充满黏液性颗粒，其形状多样化；上皮中有少量淡染的亮细胞，其结构与周围细胞基本相同，只是数量有差异；上皮细胞之间具有明显的细胞连接。胃腺上皮细胞还未分化为独立的主细胞和盐酸细胞，但腺体细胞的结构同时具备两种细胞的特征，即既有发达的细胞内小管和丰富的线粒体，又有大量膜包分泌颗粒和粗面内质网。上述结果表明，中华鳖胃黏膜上皮具有分泌黏液的细胞结构：一种胃腺细胞可同时执行分泌盐酸和胃蛋白酶原的功能。
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| 关 键 词： | 中华鳖 胃黏膜 胃腺 上皮细胞 超微结构 透射电镜 |
| 文章编号： | 1000-2030(2004)03-0139-03 |
| 修稿时间： | 2003年9月13日 |
Ultrastructure of mucous membrane and glandular epithelium of stomach in soft-shelled turtle,Trionyx sinensis |
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| SU Ze hong,CHEN Xiao wu,CHEN Qiu sheng.Ultrastructure of mucous membrane and glandular epithelium of stomach in soft-shelled turtle,Trionyx sinensis[J].Journal of Nanjing Agricultural University,2004,27(3):139-141. |
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| Authors: | SU Ze hong CHEN Xiao wu CHEN Qiu sheng |
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| Institution: | SU Ze hong,CHEN Xiao wu,CHEN Qiu sheng * |
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| Abstract: | Ultrastructure of the epithelial cells of stomach mucous membrane and gland in 15 soft shelled turtles, Trionyx sinensis ,was studied by transmission electron microscope.It was revealed that the lumen of the stomach was lined by high columnar epithelium with numerous mucigen granules in the upper part of its cells.Some light stained cells interspersed among the columnar cells,which were similar with other epithelial cells in structures but different in numbers.Cell conjunctions occurred between the adjacent epithelial cells.The structure of the stomach glands in different parts did not show obvious difference.Stomach gland cells had not differentiated into the chief cell and the parietal cell although they possessed both the well developed intracellular canaliculus and numerous microvilli projecting into the canaliculus at the apex of the cell and lots of secreting granules and rough endoplasmic reticulum. |
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| Keywords: | Trionyx sinensis(soft-shelled turtle) gastric mucosa gastric gland epithelial cells ultrastructure |
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