人胚肾脏组织发生发育的形态学研究

目的 深入对肾脏组织学结构和功能的认识,并为丰富肾脏的组织学内容提供资料.方法 收集附属医院药流或引产的4～38周人胚肾组织,进行石蜡切片,用HE染色,对不同阶段人体胚胎肾脏组织结构观察.结果 ①胚胎6周,中肾移至胚体下段,中肾中可见肾小体和肾小管样结构;中肾尾端可见后肾,后肾的皮质部可见逗号样小体和S小管,无髓质结构...

Study on the development of human embryo kidney tissue morphology

Objective Thoroughly understand the kidney organizational structure and function,and provide the information of rich its histology content.Methods Collect the affiliated hospital of medical abortion or induced abortion to 4～38 weeks,and observe the paraffin sections stained with HE for different stages of human embryo kidney organizational structure.Results ①The embryo 6th week,mesonephros go to the lower embryo,the renal corpuscles and tubular-like structure can be seen in the mesonephros;the metanephros can be seen after the end of the mesonephros,kidney cortex can be seen after the comma and S-like tubular bodies,have no medullary structure,parts of the medulla sites of mesenchymal.②Embryo 8 weeks,the renal corpuscle appears next to medulla,but the short tubular structure can not distinguish,medulla continues to be mainly mesenchymal.③With the increase of embryo age,embryo 12 weeks,the kidney has moved from the waist to renal pelvis,increase in the number of renal corpuscle volume increased renal medullary units adjacent tubular sections can be resolved,a small amount of medullary tubules nearly straight,far straight tubule and thin section,and a collection of small tubes,a large number of tubulo interstitial appear in the medullary.Embryo 37-38 weeks,have no new generation of renal corpuscles.Conclusion ①Human renal formation after 4 stages: Comma of the bodies(Ⅰ period),S bodies of(Ⅱ period),more mature bodies of(Ⅲ period) and mature bodies of(Ⅳ period).②Embryo of 12 weeks or so,the renal medullary unit form,kidney function can be urinary activity.③ Embryonic basic kidney corpuscle 36 weeks did not increase and kept stable.