The morphogenesis of the arteries of the pelvic extremity : a comparative study of mammals with special reference to the tree shrew Tupaia belangeri (tupaiidae, scandentai, mammalia)
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Bibliographic Information
The morphogenesis of the arteries of the pelvic extremity : a comparative study of mammals with special reference to the tree shrew Tupaia belangeri (tupaiidae, scandentai, mammalia)
（Advances in anatomy, embryology and cell biology, v. 144）
Springer, 1998
- : pbk
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Includes bibliographical references and index
Description and Table of Contents
Description
Due to their pronounced intraspecific variability and to difficulties in defining their evolutionary trends in mammalian phylogenies, peripheral blood vessels have been neglected in comparative studies. Supported by the Sonderforschungsbereich 89 (Car- diology) of the Deutsche Forschungsgemeinschaft, we have reconstructed the ontoge- of the blood vessels of the tree shrew, Tupaia belangeri, on the netic morphogenesis basis of a series of developmental stages. The arteries of the lower extremity are described and discussed here. Besides describing the morphogenesis of the arteries in Tupaia, it is the aim of this study to explain the variability of the arteries of the pelvic extremity among mammals, and especially among primates including man, on the basis of a common developmen- tal pattern. This can be shown in the following example. In the popliteal region of most adult mammals the arteria poplitea profunda is situated under the musculus popliteus. In the adult Tupaia, as well as in primates, this artery is missing but, superficial to the musculus popliteus, an arteria poplitea super- ficialis exists.
It seems difficult to explain such a case of "discontinuous evolution," because it is hard to imagine the position of the artery should have shifted through the muscle. The present investigation and the literature show that early in the embryonic development of a primate, man, and of Tupaia, both the arteria poplitea profunda and the arteria poplitea superficialis are present.
Table of Contents
1 Introduction.- 2 Materials and Methods.- 3 Results.- 3.1 The 17-Day Embryo.- 3.2 The 18-Day Embryo.- 3.3 The 19-Day Embryo.- 3.4 The 20-Day Embryo.- 3.5 The 21-Day Embryo.- 3.6 The 22-Day Embryo.- 3.7 The 23-Day Embryo.- 3.8 The 24-Day Embryo.- 3.9 The 25-Day Embryo.- 3.10 The 26-Day Embryo.- 3.11 The 27-Day Embryo.- 3.12 The 30-Day Embryo.- 3.13 The 35-Day Embryo.- 3.14 The 36 1/2-Day Embryo.- 3.15 The 40-Day Embryo.- 3.16 The 41-Day Embryo.- 3.17 The 42-Day Embryo.- 3.18 The Adult Tupaia belangen.- 4 Discussion.- 4.1 The Ontogeny of the Arteries of the Pelvic Extremity.- 4.2 Terminological Problems.- 4.3 Comparative Discussion of the Arterial System of the Pelvic Extremity.- 5 Summary.- References.
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