How To Use Enteron In A Sentence
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Its relation to the Coelom theory lies in the fact that Sedgwick regarded the segmentation of the body as moulded upon the segmentation of the mesoblast, which in its turn, as Kowalevsky and Hatschek had shown, was a consequence of its mode of origin as a series of pouches of the archenteron.
Form and Function A Contribution to the History of Animal Morphology
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Thus a portion of the upper marginal zone of the blastula or early gastrula, or else a piece of the roof of the archenteron of the mature gastrula was planted in the blastocoele of a young gastrula and so brought beneath the ectoderm from the beginning; it was demonstrated that these portions were able to induce neural plate.
Hans Spemann - Nobel Lecture
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They form the walls of a new cavity, the enterocoel, which is to be regarded as a nipped-off diverticulum of the archenteron.
Form and Function A Contribution to the History of Animal Morphology
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The anthozoans are diploblastic animals developing from two epithelial germ cell layers: the ectoderm, facing the seawater, and the endoderm, facing the gastrovascular cavity or coelenteron.
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The epithelium of this region of the enteron consists of a single layer of fairly regular cells, which are columnar in the dorsal region, just beneath the mesentery, and cuboidal or even flattened in regions more distant from the median plane.
Development of the Digestive Canal of the American Alligator
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Gastræa; they form the limits of the organism towards the exterior and towards the archenteron.
Form and Function A Contribution to the History of Animal Morphology
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Professor E. Ray-Lankester suggested three years afterwards (1875) the name archenteron for the primitive gut, and blastoporus for the primitive mouth.) (FIGURE.1.36.
The Evolution of Man — Volume 1
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In the direct development Bateson showed that the three divisions of the coelom arise as pouches constricted off from the archenteron or primitive gut, thus resembling the development of the mesoblastic somites of _Amphioxus_.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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It doesn't seem to do much of anything, except to offer little suggestions to cells migrating into the archenteron.
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A competent arthropod vector is one in which the ingested virus is able to infect the mesenteronal epithelial cells, disseminate from the mesenteron and replicate in the salivary glands, and be ejected with the salivary secretion during a blood meal.
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Water entering the coelenteron through the mouth leaves the body through the pores.
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The anthozoans are diploblastic animals developing from two epithelial germ cell layers: the ectoderm, facing the seawater, and the endoderm, facing the gastrovascular cavity or coelenteron.
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The character of the epithelium of the enteron caudad to the pharynx will be discussed in connection with the sections to be described below.
Development of the Digestive Canal of the American Alligator
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It becomes even more obvious when a piece of the roof of the archenteron is planted in the blastocoele.
Hans Spemann - Nobel Lecture
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Figure 3A is a transverse section through this embryo near the anterior end of the enteron, _ent_, which cavity, cephalad to this region, is bluntly pointed.
Development of the Digestive Canal of the American Alligator
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The oral tentacles then pass the paralysed prey to the mouth and into the coelenteron for digestion.
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a - L. manus ` hand 'amanous ` handless' an - enteron ` intestine 'anenterous ` without intestines' an - oura ` tail 'anura ` tailless' an - ōps ` eye 'anopsy ` eyeless'
VERBATIM: The Language Quarterly Vol XIV No 3
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Kowalevsky, in 1871, showed that the body-cavity of Sagitta was formed by a division of the archenteron into three parallel cavities, and in 1874 demonstrated the same fact for the Brachiopoda.
Form and Function A Contribution to the History of Animal Morphology
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It becomes even more obvious when a piece of the roof of the archenteron is planted in the blastocoele.
Hans Spemann - Nobel Lecture
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At a point about one-third of the length of the embryo from the tip of the head, the enteron opens to the yolk-sac, so that what now may be called the foregut has this considerable extent.
Development of the Digestive Canal of the American Alligator
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This means they have just one opening into the coelenteron which serves as both a mouth and an anus.
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The anthozoans are diploblastic animals developing from two epithelial germ cell layers: the ectoderm, facing the seawater, and the endoderm, facing the gastrovascular cavity or coelenteron.
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They distinguished in the middle layer two quite distinct elements, the mesoblast proper, formed by the evagination of the walls of the archenteron, and the mesenchyme, formed by free cells budded off from the germ-layers.
Form and Function A Contribution to the History of Animal Morphology
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For that matter, even the syncytial ‘gut’ departs further from the cnidarian or poriferan system than from the bilaterian archenteron.
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It regulates the flow of material from the mesenteron to the proctodeum.
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This stage is called the gastrula stage; ar. is the cavity of the gastrula, the archenteron; b.p. is its opening or blastopore.
Text Book of Biology, Part 1: Vertebrata
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Kowalevsky, in 1871, showed that the body-cavity of Sagitta was formed by a division of the archenteron into three parallel cavities, and in 1874 demonstrated the same fact for the Brachiopoda.
Form and Function A Contribution to the History of Animal Morphology
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By conceiving a gradually increasing amount of yolk in the hypoblastic cells in the ventral side of the archenteron, the substantial identity of the gastrula stage in the three types, which at first appear so strikingly different, will be perceived.
Text Book of Biology, Part 1: Vertebrata
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In the fossils I and J, the archenteron is thick-walled, and in J all of the cells in the embryo, including the ectodermal wall, are conspicuously larger relative to the size of the embryo.
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Thus a portion of the upper marginal zone of the blastula or early gastrula, or else a piece of the roof of the archenteron of the mature gastrula was planted in the blastocoele of a young gastrula and so brought beneath the ectoderm from the beginning; it was demonstrated that these portions were able to induce neural plate.
Hans Spemann - Nobel Lecture
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The mesenteron and Malpighian tubules are generally responsible for detoxification by accumulation of ingested metal salts in insects.
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The constriction shown by a longitudinal section of the transition area between the mesenteron and the proctodaeum is the pyloric valve.
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In response to vigorous stimuli the longitudinal muscles contract and the mouth opens, forcing the water out of the coelenteron and flattening the sea anemone against the bottom.
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Thus a portion of the upper marginal zone of the blastula or early gastrula, or else a piece of the roof of the archenteron of the mature gastrula was planted in the blastocoele of a young gastrula and so brought beneath the ectoderm from the beginning; it was demonstrated that these portions were able to induce neural plate.
Hans Spemann - Nobel Lecture
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The mesoderm then lies immediately beneath the ectoderm, with the endoderm lining the roof of the archenteron, the future gut.
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Objective To observe therapeutic effect and toxicity of the combination of xeloda with weekly dose of oxaliplatin in treatment of patients with advanced enteron tumor.
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Quelques uns les Scavent, les autres ce contenteront de Scavoir que des le tems que jeu l'honneur de faire quelque Sejour chez feu le Duc d'Albemarlea Londre qui fust alors establis du Roy Charle II. vice Roy de Jamaique, par la Relation qu'on me fist de la beauté, bonté, et richesses de L'Amerique Angloise, J'en concluse une Ideé si advantageuse, que Sur les fortes invitations de ce Seigneur je l'aurois Suivis en ce Voyage avec empressement, si je n'eusse esté detourné par les fortes remonstrances de mes parents qui voulloient que je m'etablisse dans ma Patrie, et nonobstant touttes les douceurs que j'y pouvois avoir, il me resta pourtant toujours quelque amorce et quelque chose d'attirant pour les pays Susdits.
Christoph von Graffenried's Account of the Founding of New Bern. Edited with an Historical Introduction and an English Translation by Vincent H. Todd, Ph.D. University of Illinois in Cooperation with Julius Goebel, Ph.D., Professor of Germanic Languag
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With the notochord he homologised the supporting rod in the proboscis of _Balanoglossus_, which like the notochord arises from the dorsal wall of the archenteron, and has a vacuolated structure.
Form and Function A Contribution to the History of Animal Morphology
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There exist, doubtless, homologies of great atavistic importance -- I consider as such, for example, the formation of the cavity of Rusconi [the archenteron] in Ascidians and lower
Form and Function A Contribution to the History of Animal Morphology
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The outline of the enteron is here almost a vertical slit, and the lining entoderm consists, in its dorsal and lateral regions, of a single layer of columnar epithelium, while in its ventral region, where it adjoins the liver trabeculae, it is made up of several layers of cuboidal or irregular cells.
Development of the Digestive Canal of the American Alligator
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The pyloric valvule will separate the mesenteron from the proctodaeum making the final section of the intestine.
