embryonic area

embryonic area
see under disc.

Medical dictionary. 2011.

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  • area pellucida — area pel·lu·ci·da pə lü səd ə n the pellucid central area that immediately surrounds a vertebrate embryo (as of a bird) formed by discoidal cleavage * * * the central clear part of the embryonic disc, as seen in the bird egg …   Medical dictionary

  • embryonic disc — the early embryo before the formation of somite. It is a flat disc of tissue bounded dorsally by the amniotic cavity and ventrally by the yolk sac. The formation of the primitive streak and archenteron in the embryonic disc determines the… …   Medical dictionary

  • area — 1. [TA] Any circumscribed surface or space. 2. All of the part supplied by a given artery or nerve. 3. A part of an organ having a special function, as the motor a. of the brain. SEE ALSO …   Medical dictionary

  • embryonic line — the primitive streak in the center of the germinal area …   Medical dictionary

  • embryonic pole — the area of the blastocyst where the embryoblast and the trophoblast are in contact; the embryoblast attaches to the endometrial epithelium at this pole …   Medical dictionary

  • germinal area — embryonic disc …   Medical dictionary

  • Science and Ethics of Embryonic Stem Cell Research — ▪ 2000 by Lori P. Knowles and Eric Parens       At the end of 1998, almost simultaneously, one team of researchers announced that it had isolated human embryonic stem (ES) cells and another announced that it had isolated human embryonic germ (EG) …   Universalium

  • human embryology — ▪ biology Introduction       the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth.       The human body, like that of most animals, develops from a single cell produced by the union of… …   Universalium

  • Cytotrophoblast — Primary chorionic villi. Diagrammatic …   Wikipedia

  • anlage — /ahn lah geuh/, n., pl. anlagen / geuhn/, anlages. (sometimes cap.) 1. Embryol. an embryonic area capable of forming a structure: the primordium, germ, or bud. 2. Psychol. an inherited predisposition to certain traits or to a particular character …   Universalium

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