多疣壁虎肠道内分泌细胞的分布及形态学观察

Distributional and Morphological Observation of Intestinal Argyrophil Cells in Gekko japonicus

用光镜和电镜对多疣壁虎肠道嗜银细胞的分布及形态做了初步的观察 ,结果显示 ,十二指肠嗜银细胞密度最高 ,大肠次之 ,空、回肠较低 ;作者认为嗜银细胞的分布型与动物的生活环境是相关的。嗜银细胞形态多样 ,位于肠上皮细胞之间和固有层结缔组织中。电镜下 ,嗜银细胞内充满电子致密颗粒 ,十二指肠和大肠嗜银细胞颗粒大小和密度不同。根据内分泌特点的不同 ,可分为开放型和闭合型两类。本文还对多疣壁虎肠道嗜银细胞的分布及形态特点做了讨论。

Distribution and morphology of argyrophil cells in the intestine of Gekko japonicus were studied by light microscopy and TEM. The results showed that there were most abundant argyrophil cells distributed in duodenum, less in large intestine and least in jejunum and ileum. The argyrophil cells assumed various forms, and distributed between the epithelial cells or lied in the base of epithelium and in the lamina propria. The argyrophil cells were filled with granules. The size and density of granules were different between duodenum and large intestine. The characteristis of distribution and morphology of argyrophil cells were also discussed.