【摘要】 目的:探索两栖类动物消化道嗜银细胞的形态特征与分布规律。方法:取中华大蟾蜍、黑斑蛙、泽蛙等动物各段消化管,以改良龙桂开浸银染色法与Fortana—Messon银染法制做石蜡组织切片,光镜下观测嗜银细胞的形态、分布范围与分布密度。结果与结论:嗜银细胞分布于三种动物消化管从食管后半至泄殖腔粘膜层的粘膜上皮与腺体中,从消化管始端至末端方向嗜银细胞的密度呈波浪形变化,在胃贲门、胃幽门与小肠末段处有嗜银细胞分布密度高峰。嗜银细胞的形成与大小与其所在位置有关。更多还原

【Abstract】 To explore the configuration and distribution of the digestive tube argentaffine cell of Anura Amphibians. Method: By taking the digestive tubes of Bufo Bufo gargarians and Rana nigromacutala and Rana limnocharis were routinely embedded with paraffin and sectioned in series and stained with improved Long Guikai’s and Fortana - messon’ s silve staining method, The configuration, distribution and delsity of the digestive tube argentaffine cells were observed and sun eyed. Results and conclusion: The argentaffine cells arc distrib- uted in epithelium and gland of tunica mucosa from the ending part oesophagus to cloaca. The density of argentaffine cells is wavy from the beginning to end of digestive tube, it has three peaks in cardia, pylorus and the end of inteslinum tenue. The configuration and volune of the argentaffine cells are related with their position.更多还原