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Tesi sul tema "Vertebrates Morphology"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 13 febbraio 2022

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1

Brazeau, Martin D. "Endocranial Morphology and Phylogeny of Palaeozoic Gnathostomes (Jawed Vertebrates)." Doctoral thesis, Uppsala universitet, Evolutionär organismbiologi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9360.

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Gnathostomes, or jawed vertebrates, make up the overwhelming majority of modern vertebrate diversity. Among living vertebrates, they comprise the chondrichthyans (“cartilaginous fishes” such as sharks, skates, rays, chimaeras) and the osteichthyans (“bony fishes” or bony vertebrates, inclusive of tetrapods). Gnathostomes appear to have originated in the early Palaeozoic Era, but their early fossil record is fairly scant. The best fossils appear first in the Late Silurian and Devonian periods. Much of gnathostome diversity owes to unique adaptations in the internal skeleton of their head (the e

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2

Lewis, Philip Nigel. "The morphology and function of the peritoneum in lower vertebrates with special reference to teleosts." Thesis, University of Stirling, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391492.

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3

Jones, Christopher David Stanford. "On the cross-sectional form of the patella in several primates." Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phj764.pdf.

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4

Boonzaier, Julia. "Morphology and mucin histochemistry of the gastrointestinal tracts of three insectivorous mammals : Acomys spinosissimus, Crocidura cyanea and Amblysomus hottentotus." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20220.

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Thesis (MsCMedSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The gastrointestinal morphology and the distribution of the different types of mucin secreting goblet cells were investigated in three mammalian insectivorous species, namely A. spinosissimus, C. cyanea and A. hottentotus. The aim of the study was to provide a comprehensive morphological comparison between the different species. Another aim was to illustrate and compare the distribution of mucins (neutral, sulfo- and sialomucins) in the gastrointestinal tracts (GITs) of these species, in order to better understand the quali

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5

Sylvester, Jonathan Blaylock. "Brain diversity develops early: a study on the role of patterning on vertebrate brain evolution." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42744.

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The brain has been one of the central foci in studies of vertebrate evolution. Work in East African cichlids and other emerging fish models like the Mexican cavefish (Astyanax mexicanus) offer new insight on the role of patterning on brain evolution. These fish can be grouped into two major categories according to habitat; for cichlids it is rock-dwelling (known locally as mbuna) and sand-dwelling (non-mbuna) lineage. The brain development of mbuna versus non-mbuna is defined by changes in gene deployment working along the dorsal/ventral (DV) and anterior/posterior (AP) neuraxes, respectively.

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6

Jessee, Lance D., Austin Gause, and Blaine W. Schubert. "Intervertebral Variation of North American Pit Vipers (Squamata, Viperidae) Using Geometric Morphometrics." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/95.

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Within Pleistocene cave deposits, snake fossils tend to be relatively common and generally occur as isolated vertebrae. However, the specific, and sometimes generic, identification of isolated snake vertebrae is often hindered by the significant amount of intra- and interspecific variation along the precloacal vertebral column, a subject that has largely been neglected in many fossil snake identifications. Identifications are typically based on the vertebrae of disarticulated modern specimens with preference given to mid-trunk vertebrae. This study utilizes 2-D geometric morphometrics to deter

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7

Gause, Austin R. J., Lance D. Jessee, and Blaine W. Schubert. "Geometric Morphometric Analysis of Intervertebral Variation in Colubrid Snakes." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/199.

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Snake vertebrae are common throughout the Cenozoic fossil record, but identification of isolated vertebrae often proves difficult due to inter- and intra-columnar variability. Most fossil identifications are based on comparisons with disarticulated modern specimens, with a focus on mid-trunk vertebrae. One focus of this study was to determine the necessity of identifying a true mid-trunk vertebra prior to identification and to develop a method of locating the columnar position of an isolated vertebra for both modern and fossil identifications. Colubrid genera Farancia and Heterodon were chosen

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8

Cotter, Meghan Marie. "Gross Morphology, Microarchitecture, Strength and Evolution of the Hominoid Vertebral Body." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1295890557.

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9

Kraig, Sarah Elizabeth. "Morphology and systematic implications of fossil and recent Lamnid shark vertebrae using computerized tomography (CT-scanning)." Diss., Connect to online resource - MSU authorized users, 2008.

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10

Ramzu, Mohamed Yassin A. "Etude de la regionalisation de la colonne vertebrale en fonction des modes de nage chez les teleosteens. Morphologie, histologie, croissance." Paris 7, 1994. http://www.theses.fr/1994PA077291.

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Chez les teleosteens on definit quatre grands modes de nage axiale (anguilliforme, subcarangiforme, carangiforme, thunniforme). Chacun de ces quatre modes de nage se caracterise par une morphologie differente des poissons et des specificites hydrodynamiques reposant sur la proportion du corps soumise aux ondulations motrices. L'etude biometrique (quatre mesures pour chaque vertebre) et histomorphometrique (compacite osseuse vertebrale) du rachis chez l'anguille, la truite, le chinchard et la bonite revelent une organisation particuliere et des caracteristiques structurales liees aux differents

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11

Martin-Martinelli, Elisabeth. "Evolution de la morphologie et de la distribution des neurones catecholaminergiques dans la retine de rat albinos au cours du developpement postnatal." Paris 6, 1988. http://www.theses.fr/1988PA066399.

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12

Kanzler, Benoit. "Contribution à l'établissement des bases moléculaires de la régionalisation de la peau des vertébrés." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10114.

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Abstract (sommario):

La peau des vertebres forme des annexes tegumentaires caracteristiques de chaque region du corps, un contraste net existant entre les phaneres des regions mediane et caudale du tronc ou des segments median et distal du membre. La formation des plumes ou des ecailles des oiseaux, des poils ou des pelotes plantaires des mammiferes est le resultat d'interactions demoepidermiques susceptibles d'etre modifiees par l'acide retinoique. Deux familles de facteurs de transcription pouvant etre impliquees dans l'etablissement de cette specificite regionale sont d'une part les recepteurs de l'acide retino

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13

Vézina, Daniel. "Plourdosteus canadensis (woodward 1892), un arthrodire du frasnien inferieur du canada : contribution a l'etude morphologique et phylogenetique des plourdosteidae (vertebrata, placodermi) du devonien moyen et superieur." Paris 7, 1988. http://www.theses.fr/1988PA077165.

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Description de plourdosteus canadensis, un arthrodire du frasnien inferieur de la formation d'escuminac, quebec. Revision de l'environnement sedimentologique. Comparaison de cette espece avec les autres brachythoraci, revision de la systematique des dunkleosteoidea, des plourdosteidae et des coccosteidae

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14

FORESTIER-BEN, HAMIDA CHRISTIANE. "Etude qualitative et quantitative de l'ontogenese post-natale du gyrus supra-sylvien du chat : correlations spatio-temporelles de differents indicateurs morphologiques de developpement." Paris 6, 1987. http://www.theses.fr/1987PA066167.

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15

Ferret, Blandine. "Contribution a l'etude du role des gangliosides dans l'activite fonctionnelle du neurone : effets des gangliosides exogenes sur certains parametres morphologiques et biochimiques des neurones de poulet en culture primaire." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13009.

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Le role biologique des gangliosides a ete etudie en utilisant des cultures primaires d'embryon de poulet en presence et/ou en absence d'un melange de gangliosides purifies. Les gangliosides s'inserent tres rapidement dans la membrane neuronale et produisent un effet neurotrophique et neutrogenique. Une legere stimulation de la synthese proteique est observee. Les gangliosides stimulent la methilation des proteines et des acides nucleiques, representant un mecanisme de regulation de l'activite cellulaire

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16

Osborne, Pellegrin Mary. "Etude d'interruptions spontanées de la limitante élastique interne dans quelques artères du rat : incidence sur la morphologie artérielle, et formation dans des conditions naturelles et expérimentales." Paris 6, 1986. http://www.theses.fr/1986PA066330.

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Etude des lésions spontanées de l'intima, caractérisée principalement par une rupture de la limitante élastique interne, dans certaines artères de rat. Il semble qu'il existe chez le rat de laboratoire une anomalie héréditaire, se traduisant par un défaut mineur au niveau de la structure des fibres élastiques qui entrainerait sous l'effet de forces hémodynamiques la formation de ces lésions spontanées.

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17

Ishak, Bassam. "Etude cytogenetique, phylogenie et speciation des lepilemuridae (primates, prosimiens de madagascar)." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13082.

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L'etude comparative du caryotype des differents lepilemur a permis de reconstituer le caryotype ancestral des lepilemuridae et d'etablir une phylogenie chromosomique entre les differentes especes. L'evolution chromosomique de ce taxon s'est faite a partir de ce caryotype ancestral d'une facon lineaire dichotomique avec accumulation de translocations chromosiques, ce qui a eu pour consequence de reduire de facon importante le nombre de chromosomes et de bras chromosomiques et a donc entraine une forte diminution des recombinaisons genetiques favorisant vraisemblablement la speciation dichotomiq

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18

Delongeas, Jean-Luc. "Contribution à l'étude de la différenciation et du maintien de la structure de l'épididyme de rat." Nancy 1, 1988. http://www.theses.fr/1988NAN10112.

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Importance des facteurs endoluminaux d'origine testiculaire dans la différenciation et le maintien de la structure de l'épididyme de rat, notamment au segment initial. Une androgénodépendance différentielle des cellules épithéliales a été mise en évidence. Étude de la lame basale et du métabolisme oxydatif

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19

Mukendi, Christian Kabasele. "The expansion and diversification of the claudin gene family: insight from the lamprey." Thesis, 2015. http://hdl.handle.net/10539/18530.

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Dissertation submitted to the Faculty of Science, University of the Witswatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science. May 2015 in Johannesburg<br>Claudins are a large gene family found in all vertebrates. Claudins encode tetraspan membrane proteins, involved in the structure and function of the tight junctions. This association of cells leads to the formation of the epithelial sheet which is involved in many functions such as embryo morphogenesis. The NCBI database shows 27 claudins identified in humans; 23 in mice and 17 in Xenopus. This sug

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20

Mirsky, Douglas Elgart. "Functional morphology of vertebral foramina : a comparison of fossil hominids to Homo sapiens, Pan troglodytes and Papio sp., with particular attention to KNM WT 1500 /." 2001. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:9997177.

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21

Nalla, Shahed. "The morphology of the upper thorax of Australopithecus Sediba within the context of selected hominoids." Thesis, 2014.

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Abstract (sommario):

The thoracic skeletal morphology of homininae is poorly known and understood. As a result of the representative fossil record of ribs and vertebrae being rare, distorted, fragmentary or unrecognised even when recovered, very little is known about the variability of rib and vertebral morphology when compared to the other cranial and postcranial elements in this lineage. Yet the costal skeleton forms a substantial part of the postcranial skeleton and thus ribs and vertebrae are therefore potentially numerous in the fossil record; but in comparison with other skeletal elements, and for the reason

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22

VanBuren, Collin S. "The Function and Evolution of the Syncervical in Ceratopsian Dinosaurs with a Review of Cervical Fusion in Tetrapods." Thesis, 2013. http://hdl.handle.net/1807/35700.

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Mobility of the vertebral column is important for many ecological aspects of vertebrates, especially in the cervical series, which connects the head to the main body. Thus, fusion within the cervical series is hypothesized to have ecological and behavioural implications. Fused, anterior cervical vertebrae have evolved independently over 20 times in ecologically disparate amniotes, most commonly in pelagic, ricochetal, and fossorial taxa, suggesting an adaptive function for the ‘syncervical.’ Fusion may help increase out-force during head-lift digging or prevent anteroposteriorly shortened vert

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23

Russo, Gabrielle Antoinette. "Functional morphology of mammalian sacra and caudal vertebrae : implications for tail loss and positional behaviors in extinct primates." 2013. http://hdl.handle.net/2152/21313.

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All living hominoids are characterized by taillessness and adaptations to orthograde (upright) trunk posture. Accordingly, these features have importance for our understanding of ape origins, evolutionary relationships and positional behaviors. Despite extensive study of the hominoid postcranial skeleton, researchers continue to face difficulty identifying taillessness and orthogrady from fossil material. In part, difficulties persist because although the Miocene fossil record indicates that the evolution of tail loss and orthogrady was decoupled, previous research has focused primarily on how

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24

"Positional behaviors and the neck: a comparative analysis of the cervical vertebrae of living primates and fossil hominoids." Doctoral diss., 2013. http://hdl.handle.net/2286/R.I.20938.

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abstract: Despite the critical role that the vertebral column plays in postural and locomotor behaviors, the functional morphology of the cervical region (i.e., the bony neck) remains poorly understood, particularly in comparison to that of the thoracic and lumbar sections. This dissertation tests the hypothesis that morphological variation in cervical vertebrae reflects differences in positional behavior (i.e., suspensory vs. nonsuspensory and orthograde vs. pronograde locomotion and postures). Specifically, this project addresses two broad research questions: (1) how does the morphology of c

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