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双团棘胸蛙消化道解剖学及组织学观察
引用本文:姚艳红,蒲德永,王志坚,张汉峰.双团棘胸蛙消化道解剖学及组织学观察[J].西南农业大学学报,2007,29(4):144-149.
作者姓名:姚艳红  蒲德永  王志坚  张汉峰
作者单位:[1]西南大学生命科学学院、水产科学重庆市市级重点实验室、三峡库区生态环境教育部重点实验室,重庆400715 [2]内江师范学院化学与生命科学系,四川内江641112
基金项目:中国水电顾问集团成都勘测设计研究院四川省雅砻江官地水电站陆生生物调查与评价(GD-2005-09).
摘    要:双团棘胸蛙的肠分为十二指肠、回肠、大肠和直肠.口腔顶壁为复层纤毛上皮,底壁为复层扁平上皮,食道为假复层纤毛柱状上皮,胃和肠均为单层柱状上皮,泄殖腔为复层扁平上皮.各段皱褶丰富,仅食道和胃本体有巨型的树枝状皱褶.口腔顶壁、食道、胃及泄殖腔有发达的腺体,肠的各段无多细胞腺体分布但杯状细胞丰富,其中大肠最少,直肠部最多.在口腔顶壁、食道及十二指肠均有丰富的巨型杯状细胞,胃各部及泄殖腔均无杯状细胞分布.

关 键 词:双团棘胸蛙  消化道  解剖学  组织学
文章编号:1000-2642(2007)04-0144-06
修稿时间:2006-05-17

Anatomical Features and Histological Structure of the Digestive Canal of Paa yunnanensis Anderson
YAO Yan-hong, PU De-yong, WANG Zhi-jian, ZHANG Han-feng, Chongqing , China ;.Anatomical Features and Histological Structure of the Digestive Canal of Paa yunnanensis Anderson[J].Journal of Southwest Agricultural University,2007,29(4):144-149.
Authors:YAO Yan-hong  PU De-yong  WANG Zhi-jian  ZHANG Han-feng  Chongqing  China ;
Institution:1. School of Life Science, Southwest University, Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-Environments in Three Gorges Reservoir Regian ( Ministry of Education
Abstract:The results of histo-morphological studies demonstrated that the small intestine of Paa yunnanensis Anderson consisted of duodenum and ileum while the large intestine was differentiated into rectum.The mucosa of the oral cavity and various parts of the digestive canal were well differentiated in their cellular characteristics that were described within each region.The apical oral cavity epithelium was stratified ciliated epithelium and the oesophagusis's was pseudo-stratified ciliated columnar epithelium.Simple columnar epithelium belonged to every part of stomach and intestine.Cloacal chamber epithelium was stratified cuboidal epithelium.Each organ had plenty of rugae besides that oesophagus and stomach had multiarborization rugae.Plenteous glands were detected in the apical oral cavity,oesophagus,stomach and cloacal chamber.All segments of the intestine did not have multicellular gland but had plenteous goblet cells.Few common goblet cells were distributed in the anterior large intestine,but numerous common goblet cells were detected in the rectum.Large goblet cells lay in the apical oral cavity,oesophagus and duodenum.No goblet cells lay in the stomach and the cloacal chamber.
Keywords:Paa yunnanensis Anderson  digestive canal  anatomy  histology
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