blastopore
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BLASTOPORE — Lors de l’embryogenèse animale, au cours de la gastrulation, et au moment où s’invagine le pôle végétatif de la cœloblastula, il se produit une ouverture: c’est le blastopore. Celui ci donne accès à la cavité archentérique située dans le sac… … Encyclopédie Universelle
Blastopore — Blas to*pore, n. [Gr. blasto s sprout + E. pore.] (Biol.) The pore or opening leading into the cavity of invagination, or archenteron. Note: [See Illust. of {Invagination}.] Balfour. [1913 Webster] … The Collaborative International Dictionary of English
blastopore — [blas′tō pôr΄, blas′təpôr΄] n. [ BLASTO + PORE2] the opening into the gastrula cavity … English World dictionary
Blastopore — Infobox Embryology Name = PAGENAME Latin = GraySubject = 6 GrayPage = 47 Caption = Caption2 = System = CarnegieStage = Days = Precursor = GivesRiseTo = MeshName = MeshNumber = DorlandsPre = b 14 DorlandsSuf = 12188030 A blastopore is an opening… … Wikipedia
blastopore — During gastrulation cells on the surface of the embryo move into the interior to form the mesoderm and endoderm. The opening formed by this invagination of cells is the blastopore. It is an opening from the archenteron, the primitive gut, to the… … Dictionary of molecular biology
Blastopore — Le blastopore est l orifice de la blastula faisant communiquer l’archentéron avec l’extérieur. Il résulte de l’invagination du matériel superficiel lors de la gastrulation et constituera d abord l’anus chez les deutérostomiens et d abord la… … Wikipédia en Français
blastopore — noun Date: 1880 the opening of the archenteron • blastoporic adjective … New Collegiate Dictionary
blastopore — a circular area on the yolk of Teleostei eggs not covered by the advancing germ ring during epiboly … Dictionary of ichthyology
blastopore — n. [Gr. blastos, bud; poros, passage] The mouthlike opening from the archenteron to the exterior during the gastrula stage of development … Dictionary of invertebrate zoology
blastopore — blastoporic /blas teuh pawr ik, por /, blastoporal /blas teuh pawr euhl, pohr /, adj. /blas teuh pawr , pohr /, n. Embryol. the opening of an archenteron. [1875 80; BLASTO + pore passage; see PORE2] * * * ▪ anatomy the opening by which the… … Universalium
