- extraembryonic mesoderm
- mesoderm that is located outside the embryo and belonging to fetal accessory organs, covering for example the amnion and yolk sac.
Medical dictionary. 2011.
extraembryonic mesoderm
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Extraembryonic coelom — Infobox Embryology Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Caption2 = System = CarnegieStage = 6a Days = 12 Precursor = Heuser s membrane GivesRiseTo = MeshName = MeshNumber = DorlandsPre = c 44 DorlandsSuf = 12247640 The… … Wikipedia
extraembryonic coelom — n the space between the chorion and amnion which in early stages is continuous with the coelom of the embryo proper * * * the cavity, lined with mesoderm, that surrounds the embryo from the earliest stages of development. It communicates… … Medical dictionary
mesoderm — The middle of the three primary germ layers of the embryo (the others being ectoderm and endoderm); m. is the origin of connective tissues, myoblasts, blood, the cardiovascular and lymphatic systems, most of the urogenital system, and the … Medical dictionary
extraembryonic coelom — exocoelom the cavity, lined with mesoderm, that surrounds the embryo from the earliest stages of development. It communicates temporarily with the coelomic cavity within the embryo (peritoneal cavity). Late in pregnancy it becomes almost entirely … The new mediacal dictionary
Extra-embryonic coelom — Extraembryonic coelom The extraembryonic coelom (or chorionic cavity) is shown between the two layers of extraembryonic mesoderm (labelled mes. ) in this image of an implanted embryo. Latin coeloma extraembryonicum … Wikipedia
Body cavity — Picture of Human body cavities dorsal body cavity to the left and ventral body cavity to the right. By the broadest definition, a body cavity is any fluid filled space in a multicellular organism. However, the term usually refers to the space… … Wikipedia
Human embryogenesis — is the process of cell division and cellular differentiation of the human embryo during early prenatal development. It spans from the moment of fertilization to the end of the 8th week of gestational age, whereafter the embryo is called a fetus.… … Wikipedia
Chorion — For the chorion in invertebrate eggs, see Chorion (egg). Chorion Diagram showing earliest observed stage of human embryo … Wikipedia
Inner cell mass — Infobox Embryology Name = PAGENAME Latin = GraySubject = 6 GrayPage = 46 Caption = Blastocyst with an inner cell mass and trophoblast. Caption2 = System = CarnegieStage = 3 Days = 6 Precursor = blastocyst GivesRiseTo = epiblast, hypoblast… … Wikipedia
Pluriblast — The pluriblast is a pluripotent population of cells in the early mammalian conceptus that is distinct from the trophoblast, and gives rise to the germ layers of the embryo proper, as well as extraembryonic endoderm and extraembryonic mesoderm.… … Wikipedia
