membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m … Medical dictionary
Heuser membrane — Heu·ser membrane (hoiґzər) [Chester Heuser, American embryologist, 1885–1965] see exocoelomic membrane, under membrane … Medical dictionary
Heuser — Chester H., U.S. embryologist, 1885–1965. See H. membrane … Medical dictionary
Heuser membrane — exocoelomic m … Medical dictionary
John Heuser — Infobox Scientist name = John Edward Heuser image width = 151px caption = John Heuser birth date = birth date and age|1942|08|29 birth place = Pittsburgh, Pennsylvania field = Cell Biology, Physiology, Biophysics, Electron Microscopy work… … Wikipedia
exocoelomic membrane — a layer of flattened cells that develops as a lining of the blastocyst or chorionic cavity just after implantation. Together with the hypoblast, it forms the covering layer of the primary yolk sac. Called also Heuser m … Medical 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
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
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
Amniotic sac — A drawing of the amniotic sac from Gray s Anatomy … Wikipedia