Chapter 2 .Epithelial TissueGeneral description:conformationdistributionclassification:被覆上皮:(边界组织)腺上皮:分泌功能为主的上皮
Chapter . Epithelial Tissue General description: • conformation • distribution • classification: 被覆上皮:(边界组织) 腺上皮:分泌功能为主的上皮
Endothelium(内皮)simple squamous epithelium(单层扁平上皮)mesothelium(间皮)simplesimple cuboidal epithelium(单层立方上皮)layer(单层)simple columnar epithelium(单层柱状上皮)pseudostratified columnar ciliatedepithelium(假复层纤毛柱状上皮)stratified squamous epithelium(复层扁平上皮)stratifiedlayer(复层)transitional epithelium(变移上皮)
simple squamous epithelium (单层扁平上皮) mesothelium simple simple cuboidal epithelium (间皮) layer (单层立方上皮) (单层) simple columnar epithelium (单层柱状上皮) pseudostratified columnar ciliated epithelium (假复层纤毛柱状上皮) stratified squamous epithelium stratified (复层扁平上皮) layer (复层) transitional epithelium (变移上皮) Endothelium (内皮)
TO8DDpOOOSimple columnar epitheliumSimplecuboidal epitheliumSimple squamous epithelium罩厢柱状上皮单播立方形上皮罩厢鳞状上皮復眉鳞状上皮遍渡性上皮有机毛的低復厢上皮Transiuonal epitheliumStratified squamous epitheliumCiliated pseudostratifiedepithehu
3.SpecialisationsofEpithelinm(上皮的特殊结构(1)Microvillus(微绒毛)andCilium(纤毛)均为细胞膜与细胞质突出形成的指状突起纤毛微绒毛光镜较粗、长细小,构成纹状缘电镜有纵行微丝有9X2+2根微管功能扩大细胞表面积,能定向摆动有利于吸收
3.Specialisations of Epithelinm(上皮的特殊结构) ⑴ Microvillus (微绒毛) and Cilium (纤毛) 均为细胞膜与细胞质突出形成的指状突起 微绒毛 纤毛 光镜 细小,构成纹状缘 较粗、长 电镜 有纵行微丝 有9X2+2根微管 功能 扩大细胞表面积, 能定向摆动 有利于吸收
(2)Celljunction(细胞连接)(F2)①Tightjunction(紧密连接)②Desmosome(桥粒)③Gapjunction(缝隙连接)★Junctioncomplex(连接复合体(3)Basementmembrane(基膜)(图5)半桥粒基膜的透明板基膜的致密板基膜的网状板
⑵ Cell junction (细胞连接) (F2) ① Tight junction(紧密连接) ② Desmosome (桥粒) ③ Gap junction (缝隙连接) ★Junction complex(连接复合体) ⑶ Basement membrane(基膜)(图5) 半桥粒 基膜的透明板 基膜的致密板 基膜的网状板