How To Use Coelom In A Sentence
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Cardio-coelom: that part of the coelom that forms the pericardium.
Explanation of Terms Used in Entomology
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In hemichordates, the three adult coelomic cavities are derived from coelomic sacs that form around the gut of the larva (an unpaired protocoel and two pairs of sacs for the mesocoel and metacoel).
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My current processor is a 2 ghz Pentium M in a laptop, so I'm not sure at all what multiple cores actually get done in the real world, and am having trouble finding such info. posted on Sun Dec 28, 2008 9: 05 pm coelomate wrote: Say I have two monitors (19x12 and 16x10) up and rocking, and decide to have an instant messaging program, iTunes, a spread sheet, a word document, and firefox all running.
The Tech Report: News
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It has no coelom (body cavity), but consists of three cell layers: epidermis, gastroderm, mesoderm.
CreationWiki - Recent changes [en]
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In lancelets, the trunk somites extend and fuse ventrally to give the unsegmented periviscelar coelom.
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Walls of the coelomic pouches, which form (a) an inner lining to the epiblast, (b) an outer coating to the hypoblast, and (c) the mesentery (m.), by which the intestine is supported.
Text Book of Biology, Part 1: Vertebrata
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The same kind of coelom-formation as in sagitta was afterwards found by Kowalevsky in brachiopods and other invertebrates, and in the lowest vertebrate -- the amphioxus.
The Evolution of Man — Volume 1
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Such a radical change in the mitochondrial gene arrangement within a closely related taxon has never been observed in other coelomate phyla.
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The genes have an arrangement relatable to those of coelomate metazoans, but not to those of secernentean nematodes.
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Gerbil First Class posted on Sun Dec 28, 2008 11: 15 pm coelomate wrote: Can you elaborate?
The Tech Report: News
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The ophiuroid coelom is strongly reduced, particularly in comparison to other echinoderms.
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A few years ago, some molecular embryology data on amphioxus have revived the long forgotten hypothesis that the ancestor of coelomates was a segmented animal.
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The only tissues that persistently expressed CAIX protein were coelomic epithelium (mesothelium) and its remnants, the epithelium of the stomach and biliary tree, glands and crypt cells of duodenum and small intestine, and the cells located at those sites previously identified as harboring adult stem cells in, for example, the skin and large intestine.
BioMed Central - Latest articles
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The soft parts in the axial canal of the stem consist of nerve cords, coelomic cavities, and associated organs which require more metabolic maintenance.
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body cavity of a coelomate animal" 'tis simple, it be the cavity of an animal that has a body cavity.coele Gr Koilia body cavity a chamber. like "win a victory
Languagehat.com: COELOM.
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In 8 these buds have become hollow vesicles, growing out from it, the coelomic pouches.
Text Book of Biology, Part 1: Vertebrata
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The effect of progenesis has been best illustrated in some groups of interstitial-living annelids in which parapodia as well as the coelom are lost and the segmented appearance greatly reduced.
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In animals that lack a hard skeleton, a fluid-filled gastrovascular cavity or coelom Offers support and resistance to contraction of muscles for mobility Example: Earthworms - When muscles contract, segments become thinner and elongate, like a squeezed balloon Exoskeleton
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The body cavity nature varies considerably in these phyla, from complete absence of body cavity in the entoprocts and gastrotrichs to the priapulid body cavity that is actually interpreted as a true coelom by some authors.
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Cell-lineage studies of ctenophores, polyclad flatworms, nemertines and acoelomorph flatworms reveal important distinctions between mesodermal cells arising from ectoderm and those from endoderm.
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In mellitids, the intestine is separated from the rest of the coelom by a well-defined wall of the peripheral ballast system.
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There are reasons for supposing that the truncal coelom was at one time provided with pore-canals, but supposed vestiges of these structures have only been described for one genus, _Spengelia_, in which they lie near the anterior end of the truncal coelom.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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The gastraea theory shows us how to do this, by representing the embryology of the lowest vertebrate, the skull-less amphioxus, as the original form, and deducing from it, through a series of gradual modifications, the gastrulation and coelomation of the craniota.
The Evolution of Man — Volume 1
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They first evolved in the earlier Cambrian period, as part of the great radiation of coelomate animals that occurred at that time.
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The reproductive system is composed of a single saccular gonad in a coelomic pouch lying dorsal to the digestive system.
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Arrow worms were considered deuterostomes based on their tripartite coelom and the retention of the blastopore to form the anus.
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The important point for us is that, just as all Metazoa were considered by Haeckel to be descended from the Gastræa, so all Coelomati were held by the Hertwigs to be derived from an original coelomate _Urform_.
Form and Function A Contribution to the History of Animal Morphology
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As an invertebrate comparative anatomist, I am hard pressed to find anything in the nest of an ant that corresponds to the integument of a tapeworm or the coelomic cavity of an echiuran.
American Scientist Online
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It's the body cavity of a coelomate animal, and that phrase is not usefully defined.
Languagehat.com: COELOM.
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The persistent lack of resolution of the relationships of the three major clades of coelomate animals, for example, arguably reflects rapid diversification of the "Cambrian Explosion.
Evolution News & Views
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The subcoelomic mesenchyme is defined as the layer of tissue that lies underneath the mesothelial surface of the peritoneum.
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A number of other volatile, low molecular mass compounds were found in the coelomic fluid of these and other nereid species and thought to play a role in their reproduction.
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Enteropneusta exhibit chordate (vertebrate) affinities in respect of the coelomic, skeletal and nervous systems as well as in regard to the respiratory system, and, further, that the gill-slits are formed upon a plan similar to that of the gill-slits of _Amphioxus_, being subdivided by tongue-bars which depend from the dorsal borders of the slits.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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-- According to the theory of the coelom which we owe to Goodrich, in all the coelomata the coelom is primarily the generative cavity, on the walls of which the gametocytes are situated, and the coelomic ducts are the original genital ducts.
Hormones and Heredity
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An alternative explanation is that it was a kind of aschelminth (pseudocoelomate worm), as indicated for example by its asymmetrical mouth.
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Embryonic coelomic structures have specific fates as the bilaterally symmetrical larvae metamorphose into radially symmetric adults.
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These characters would have facilitated volume changes of the coelomic cavity due to dorso-ventral rotation of the ‘synsacrum’ on the dorsal vertebrae.
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Taking my first glance at a new article about coelomic effusion in frogs exciting, I know, I immediately wanted to know what coelomic meant.
Languagehat.com: COELOM.
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Dissepiment: a partition wall: applied to the forming septa separating the coelom-sacs in the embryo; also the thin envelope about the members in obtect pupae.
Explanation of Terms Used in Entomology
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Figure 3 the coelom is much cut up by the gill slits, and we have remaining of it (a) the dorsal coelomic canals (d.c.c.) and (b) the branchial canals (br. c.) in the bars between the slits.
Text Book of Biology, Part 1: Vertebrata
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(body cavity) arises as a series of hollow "archenteric" outgrowths, and ms. becomes the alimentary canal.mt. c., the metapleural canals, probably arise subsequently to, and independently of, the general coelomic space, by a splitting in the body-wall substance.
Text Book of Biology, Part 1: Vertebrata
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Coelom-sac: the cavity containing the viscera: in embryology one of a pair of closed sacs, arising in the mesoderm of each segment of the embryo and giving rise to more or less of the coelom of the adult.
Explanation of Terms Used in Entomology
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Embryonic coelomic structures have specific fates as the bilaterally symmetrical larvae metamorphose into radially symmetric adults.
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Finally, we must point out, as a fact of the utmost importance for our anthropogeny and of great general interest, that the four-layered coelomula of man has just the same construction as that of the rabbit
The Evolution of Man — Volume 1
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Gametes are shed into the coelom and carried outside the body through the nephridia or as a result of the body wall actually rupturing.
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The body cavity nature varies considerably in these phyla, from complete absence of body cavity in the entoprocts and gastrotrichs to the priapulid body cavity that is actually interpreted as a true coelom by some authors.
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Flatworms are unsegmented, bilaterally symmetrical worms that lack a coelom but that do have three germ layers.
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A number of tubuli, at first metamerically arranged, now appear, each opening, on the one hand, into the coelom by a ciliated mouth, the nephrostome (n.s.), and on the other into the segmental duct.
Text Book of Biology, Part 1: Vertebrata
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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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Schizocoelous mesoderm formation in coelomate spiralians also makes use of individual cell immigration during its early phase.
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Snails collect their metabolic wastes in the coelom - which has been reduced to a sac surrounding the heart.
Mollusca
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There are reasons for supposing that the truncal coelom was at one time provided with pore-canals, but supposed vestiges of these structures have only been described for one genus, _Spengelia_, in which they lie near the anterior end of the truncal coelom.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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Walls of the coelomic pouches, which form (a) an inner lining to the epiblast, (b) an outer coating to the hypoblast, and (c) the mesentery (m.), by which the intestine is supported.
Text Book of Biology, Part 1: Vertebrata
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These pouches eventually fill the blastocoel forming two new pouches, the coelom.
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Cardio-coelomic: applied to the venous openings from the heart to the body cavity.
Explanation of Terms Used in Entomology
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Except in leeches, the coelom is partially subdivided by septa.
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It's the adjective of coelom SEE-lum, which Merriam-Webster said is "the usually epithelium-lined space between the body wall and the digestive tract of metazoans above the lower worms," which told me basically nothing.
Languagehat.com: COELOM.
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Just as the gastraea-theory explains the origin and identity of the two primary layers, so the coelom-theory explains those of the four secondary layers.
The Evolution of Man — Volume 1
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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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Coelomic fluid was always bright yellow, while amniotic fluid was clear.
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I decided to see how other major dictionaries handle coelom.
Languagehat.com: COELOM.
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The coelom extends into the rays, where the gonads are located.
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Of these divisions of the coelom the first two communicate with the exterior by means of a pair of ciliated pore-canals placed at the posterior end of their respective segments.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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_Amphioxus_ the reverse is the case; (b) the tongue-bar contains a large coelomic space in _Balanoglossus_, but is solid in _Amphioxus_; (c) the skeletal rods in the tongue-bars of _Balanoglossus_ are double; (d) the tongue-bar in _Balanoglossus_ does not fuse with the ventral border of the cleft, but ends freely below, thus producing a continuous U-shaped cleft.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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Flatworms are unsegmented, bilaterally symmetrical worms that lack a coelom but that do have three germ layers.
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Hollow cavities in the bodies of animals (except for the gut) are called coeloms: for all brachiopods, phoronids and bryozoans, the hollow cavity in the lophophore is the second of the three divisions of the coelom in the entire body.
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-- It seems likely that the coelomic pore-canals were originally excretory organs, but in the existing
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
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This animal would have to be relatively large since the coelomate condition cannot have evolved in a tiny animal.
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Dissepiment: a partition wall: applied to the forming septa separating the coelom-sacs in the embryo; also the thin envelope about the members in obtect pupae.
Explanation of Terms Used in Entomology
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-- According to the theory of the coelom which we owe to Goodrich, in all the coelomata the coelom is primarily the generative cavity, on the walls of which the gametocytes are situated, and the coelomic ducts are the original genital ducts.
Hormones and Heredity
