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.

blastopore

(ˈblæstəʊˌpɔː)
n
(Physiology) embryol the opening of the archenteron in the gastrula that develops into the anus of some animals
ˌblastoˈporic, ˌblastoˈporal adj

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.
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"
References in periodicals archive ?
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.
It basically exists as ovoid, blastopore and hyphal or 4 mycelia phases .
The time expended for the closure of the blastopore varied between the different incubation temperatures, with eggs that were incubated at 30[degrees]C having shown a faster embryonic development compared to the other treatments.
First cell division was not apparent until day 4, after which divisions occurred daily until the blastopore appeared at day 28.
At 20-30 [micro]M (Figures 4 and 6), the larvae remained motile, retained the blastopore and the lower part of archenteron and generally survived through the next 1-2 days; they did not lose their extralarval caps (category III).