自然科学版
陕西师范大学学报(自然科学版)
生命科学
甘肃鼢鼠消化道的组织结构
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王剑, 樊魏伟, 杨佐娟, 何建平*
(陕西师范大学 生命科学学院, 陕西 西安 710062)
王剑,男,硕士研究生,主要研究方向为动物生理学.E-mail:wangjian0112@stu.snnu.edu.cn.* 通信作者:何建平,女,副教授,博士.E-mail: hejianping@snnu.edu.cn.
摘要:
运用组织学方法研究了甘肃鼢鼠的消化道组织结构.结果显示:甘肃鼢鼠胃上皮具部分角质化,胃底与胃体分界明显,胃底具海绵样结构;胃体腺体发达,中部有固有层加厚的椭圆状结构,其边缘有发达的皱襞结构,近幽门端皱襞较高.小肠绒毛发达;盲肠发达,具螺旋形皱襞;大肠肌层较厚,肠腔内有纵行皱襞.结果表明:甘肃鼢鼠消化道组织结构与其食性和独特的生活环境相适应.
关键词:
甘肃鼢鼠(Myospalax cansus); 消化道; 组织结构
收稿日期:
2009-09-15
中图分类号:
Q959.837
文献标识码:
A
文章编号:
1672-4291(2010)05-0065-03
基金项目:
国家自然科学基金资助项目(30670360).
Doi:
Study on the histological characteristics of Gansu zokor's digestive tract
WANG Jian, FAN Wei-wei, YANG Zuo-juan, HE Jian-ping*
(College of Life Science , Shaanxi Normal University , Xi′an 710062 , Shaanxi, China )
Abstract:
The histological characteristics of the Gansu zokor's digestive tract were studied by using histological method. The results show that there were two different kinds of ephithelium in stomach including keratinized stratidied squamous ephithelium and simple colummar ephithelium. The gastric glands in stomach was plentiful, and there were villus-like structure in the body of stomach. The small intestine was longer, which changed lower and lower as it extended to the ileum. The cecum had thin tract wall and spiral cecal folds. The large intestine was relative long, and had vertical folds. The muscle strati of large intestine were thicker. The special histological characteristics of Gansu zokor's gastrointestinal tract maybe meet to their food habit and special living environmentt.
KeyWords:
Gansu zokor (Myospalax cansus); digestive tract; histology