extraembryonic endoderm

См. также в других словарях:

• 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

• Hypoblast — Infobox Embryology Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Section through the embryo. (Hypoblast visible but not labeled.) Caption2 = D points to the hypoblast. System = CarnegieStage = Days = 8 Precursor = inner cell mass… …   Wikipedia

• Gastrulation — of a diploblast: The formation of germ layers from a (1) blastula to a (2) gastrula. Some of the ectoderm cells (orange) move inward forming the endoderm (red). Gastrulation is a phase early in the embryonic development of most animals, during… …   Wikipedia

• 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

• 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

• 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

• Embryology — 1 morula, 2 blastula 1 blastula, 2 gastrula with blastopor …   Wikipedia

• AMN (gene) — Amnionless homolog (mouse), also known as AMN, is a human gene. PBB Summary section title = summary text = The protein encoded by this gene is a type I transmembrane protein. It is thought to modulate bone morphogenetic protein (BMP) receptor… …   Wikipedia

• Cell potency — Pluripotent, embryonic stem cells originate as inner mass cells within a blastocyst. The stem cells can become any tissue in the body, excluding a placenta. Only the morula s cells are totipotent, able to become all tissues and a placenta. The… …   Wikipedia

• Yolk sac — Not all yolk has to do with birds’ eggs. Human embryos have a yolk sac, a membrane outside the embryo but connected by a tube (the yolk stalk) though the umbilical opening to the embryo’s midgut. The yolk sac serves as an early site for …   Medical dictionary