188泰山医学院学报第16卷维次之t结缔组织成纤维细胞形成的弹性纤维较晚,关于以上三者形成弹性纤维的方式有什么不同,值得进一步探讨3.j耳廓肌为骨骼肌,分内叽和外叽,前者有三块,后者有六块,都属退化性肌和不发达叽活动甚微本文因切面关系,对耳廓肌、耳廓横叽和耳廓斜肌为僦进行讨论旺胎早期为嗜酸性短的成肌细胞t棱位于中央,l2周胞质内出现棱朊粒,再形成肌原纤维,l4周呈现横纹,l9周清晰,2O周始棱多位于肌膜下,3O周后其形态结构与成人近似。3.6钴缔组织在胚胎早期为旺性结缔组织,较细腻而细胞成份较多,有少量的毛细血管随胎龄增长真皮和软骨周围结缔组织中胶原纤维增多而变致密23周后软骨内侧面和耳垂部的脂肪细胞增多。参考文献1高佩鲁,撬戌芳,束照啊,等.人世儿耳廓的群击学研览.*州学杂志,1994,17(4):36]2张宰芳.人胚胎耳廓的组织星生和组织化学.济宁压学院学报,199],14(2)4173咎华逞主醇.中国人胚胎发育时序和畸胎预防.第1扳.上海:上海匿科大学出粗社,1983:】9j4Holbook,K.A.Regionaldevelopmentofthehumanepidermisinthefirsttrinesterembryoandsecondtrimester(agesrdatedtothetimingofaamniocentesisandfetalbiopsy)-】InvestDermato[-1980,74:1615高佩安,建成芳,丰亚鲁,等.胎儿耳廓皮腱及附属器的组织发生观察泰山医学院学报,1994.】;(2):8]6Hwang,NS.IJ]trastruetureofhumanfeota]andneotmta[hyalirtecartilage.JPathol】978,126(4);2097上海第一医学院主编.组织学(事考书)第】版,北京:人民卫生出版牡,19832】9B盛昆或,蓦}肖琼,严悦卿.胎儿外开;特征耐观察I.牌喜{学杂志,1993,】6(2):1699梧月如.吴斌,施连.昆呷}地区胎儿外测量的研究.解剖学杂志,1990,13(增刊){40]10王泽忠,橱广麦,王争鸣.凡胚舶期鞋骨菅甘观察.*剖学报,】985,16(2):1731】奁军,丰宁.^胚胎软膏姐织冉如胞坏无的开j态学研究.辟郜学报,1987,18(1):】10l2束立基.^胡部和颈部皮腱的发育观察解剖擘报,1989,20(2):21413高佩鲁,丰亚},赡成芳.胎儿手脂皮腱组织发生观察.彝山医学院学报,1991,12(1):23TISSUEDEVELOPMENTOFTHEELASTICCARTILAGEANDOTHERnSSUEOFTHEFETALAURICLEGaoPeian,WelChengfang(Oept-ofHistologyandEmbryology,LiYalu,BiCullingTaishanMedicalCollegetetc)ABSTRACTWeselected72indueedfetusof9—39weeds.Paraffinsectionoftherightauricleweredone.withHEandWeigertstaining.nletissuedevelopmemoftheelasticcartihge,elasticfiber,musculartissueandconnectivetissueoftherightauriclewereobservedwithlightmicroscope.There·sultsshowedthattheelasticcartilagewascomposedofdenseconnectivetissuecellsintheninthweek,differentiatingcartilagecellsappearedinthetwelfthwek,cartilagemembraneformedandelasticfibersappearedinththirtiethweek,elasticfibersincreasedandgrewnbetwencartilagecellsintheeightiethwek.isogenousgroupappearedinthethirty-siathweek.nleelasticfibersofcentreofelasticcarti‘1ageappearedinthethirtiethwek,whichlocatedinthewallofsmallarteryinthetw~ty—second,andthetwenty-eighthweekinconnectivetissue.However,dermisappearedonthethirtieth,andtheelasticfibersofconnectivetissue.Themuscleoftheauricledevelopedcytopasmicgranulesinthe维普资讯http://www.cqvip.com第16卷第3期泰山医学院学报Vo].16No.31995年JOuRNAIOFTAISHANMEDICALCOLLEGEI995189twelfthweek,protop[asmofmuscledevelopedcytopasmicgranulesinthetwelfthweek,Crossstriationinther0urteenthweekwasa【SOobserved.andmoreclearinthenineteenthweekNucleusofmusclemovedundermuscularmembrane-Theconnectivetissuewasembryonaltissuecontainingalittletapir—laryandnervefiberintheninthwek.Fatcellsappearedinthesixteenthweek.KEYWORDSfetus;auricle;tissuedevelopment(收稿日期1995—1—20)车伟柱t绉一|1,磁场处理对啤酒品质的影响内容提要i张...