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胚胎学中关于胎膜的概念是“胎膜是由受精卵发育而来,是胚体以外的附属结构.胎膜包括:绒毛膜、卵黄囊、尿囊、羊膜和脐带.对胚胎起保护和物质交换的作用,当胎儿娩出后胎膜也相继由母体排出.”新出版的全国高等医药院校教材《组织学及胚胎学》、全国中等卫生学校教材《解剖学及组织胚胎学》等教材中,均是同一观点.而临床医学妇产科学中关于胎膜的概念是“受精卵除发育为胎儿外,尚发育成胎盘、胎膜、脐带及羊水,统称胎儿附属物.胎膜是由平滑绒毛及羊膜组成.”全国高等医药院校教材《妇产科学》、全国中等卫生学校教材《妇产科学》及全国中等卫生学校教材《妇产科学及护理》等教材,均是同一观点.由此可见,基础医学胚胎学中关于胎膜的概念与临床医学妇产科学中关于胎膜的概念差距较大.前者的胎膜是一个相当于胎儿附属结构总称的抽象概念,而后者的胎膜只是胎儿附属结构的一种,是一层具体的薄膜,
The concept of fetal membranes in embryology is that “the fetal membranes are derived from the fertilized egg and form an accessory structure outside of the embryo body.” The membranes include chorion, yolk sac, allantoic sac, amnion and umbilical cord. The role of material exchange, when the fetus is delivered after the fetal membranes have also been discharged from the mother. “Newly published national institutions of higher learning teaching materials” Histology and Embryology “, the national secondary school textbooks” Anatomy and Embryology “and other teaching materials , Are the same point.And clinical medicine Obstetrics and Gynecology on the concept of fetal membrane is: ”In addition to the development of the fertilized egg fetus, still develop into the placenta, fetal membranes, umbilical cord and amniotic fluid, collectively referred to as fetal appendages. Smooth hair and amniotic composition. “National College of medicine teaching material” obstetrics and Gynecology “, the national secondary school health school teaching material” Obstetrics and Gynecology “and the national secondary health school teaching material” obstetrics and gynecology and nursing "and other textbooks are the same view. Thus, the basic medical embryology on the concept of fetal membranes and clinical obstetrics and gynecology in the concept of fetal membranes on the larger gap between the former is the equivalent of a fetal membrane fetal appendage structure of the general pumping Like the concept, while the latter’s fetal membrane is only a subsidiary of fetal structure, is a concrete film,