blastopore


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Related to blastopore: archenteron

blas·to·pore

 (blăs′tə-pôr′)
n. Embryology
The opening of the archenteron.


blas′to·por′al, blas′to·por′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

blastopore

(ˈblæstəʊˌpɔː)
n
(Physiology) embryol the opening of the archenteron in the gastrula that develops into the anus of some animals
ˌblastoˈporic, ˌblastoˈporal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

blas•to•pore

(ˈblæs təˌpɔr, -ˌpoʊr)

n.
the opening of the archenteron in the early embryo.
[1875–80; blasto- + -pore passage; see pore2]
blas`to•por′ic (-ˈpɔr ɪk, -ˈpɒr-) blas`to•po′ral (-ˈpɔr əl, -ˈpoʊr-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blastopore - the opening into the archenteronblastopore - the opening into the archenteron  
archenteron - central cavity of the gastrula; becomes the intestinal or digestive cavity
orifice, porta, opening - an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
To reduce death by mechanical collapse eggs are not manipulated before the closure of the blastopore (approx.
During gastrulation, the embryo is uniformly ciliated except in the blastopore region and the site of the future mouth (not shown).
The embryonic phase--at 14.5 hours, the blastopore closed forming an embryo (Fig.
Spemann's experiments, in 1924, suggested that the dorsal blastopore lip represents a differentiation center from which the determination process gradually expands toward the nondetermined ectoderm, in the gastrula stage [47].
splendens es que la gastrulacion es un fenomeno concomitante a la epibolia que acontece a partir de un grupo de celulas localizadas en el polo animal del huevo telolecito (blastula) y durante la gastrulacion, las celulas de la blastula experimentan una redistribucion dramatica para originar un embrion multilaminar con rudimentos de cabeza, tronco y cola (34), generado a traves de movimientos celulares altamente coordinados mediante los cuales, grupos definidos de celulas se internalizan desde la superficie formando un blastopore y dando origen al endomesodermo (28).
Some authors consider the 100% epiboly stage equivalent to the closure of the blastopore and attribute this moment the opening of the primitive gut in larvae.
The beginning of this stage was marked by the blastopore (Fig.
Invagination of the blastopore began at 16 h (Figure 4(n)), followed by shrinking in diameter of the blastopore (Figure 4(p)).
It basically exists as ovoid, blastopore and hyphal or 4 mycelia phases .