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Early Development of the Shoulder Girdle and Sternum in Marsupials (Mammalia: Metatheria)

  • Book
  • © 1987

Overview

Authors:
  1. Milan Klima

    1. Anatomisches Institut, Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany

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Part of the book series: Advances in Anatomy, Embryology and Cell Biology (ADVSANAT, volume 109)

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Table of contents (5 chapters)

  1. Front Matter

    Pages I-VII
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  2. Introduction and Review of the Literature

    • Milan Klima
    Pages 1-2

  3. Material and Methods

    • Milan Klima
    Pages 3-8

  4. Results

    • Milan Klima
    Pages 9-53

  5. Results and Discussion

    • Milan Klima
    Pages 54-80

  6. Summary

    • Milan Klima
    Pages 81-82

  7. Back Matter

    Pages 83-94
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Keywords

About this book

The development of the breast-shoulder apparatus in the Marsupialia was inves­ tigated and compared with the conditions in Monotremata and Placentalia. The results were achieved by the investigation of material comprising altogether 109 histological serial sections of intrauterine embryos, neonates, and pouch young from 11 marsupial species. Additionally, 54 skeletons of subadult and adult marsupials from 25 species were included for comparison. The embryonic states show a strong similarity to the developmental stage of the breast-shoulder apparatus in the monotremes. In contrast, the adult breast-shoulder apparatus generally corresponds to that in placentals. The following elements can be observed in the marsupial breast-shoulder apparatus during embryogenesis: scapula, metacoracoid, procoracoid, first rib, paired sternal elements, unpaired sternal element, and clavicle. All the elements mentioned together form a compact, continuous arch in both the intrauterine embryos and the neonates. In the pouch young, this arch is reduced rather soon after birth, so that a compact connection between the left and the right half of the body no longer exists. All that remains is a loose connection via the clavicle. The metacoracoid becomes the processus coracoideus scapulae. The procoracoid becomes the praeclavium. The unpaired sternal element fuses with the paired sternal element, generating the uniform manubrium sterni. The first rib takes its usual position in the thorax. In the pouch young, the breast­ shoulder apparatus as a whole already shows all the typical characteristics that can be determined in adults.

Authors and Affiliations

  • Anatomisches Institut, Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany

    Milan Klima

Bibliographic Information

  • Book Title: Early Development of the Shoulder Girdle and Sternum in Marsupials (Mammalia: Metatheria)

  • Authors: Milan Klima

  • Series Title: Advances in Anatomy, Embryology and Cell Biology

  • DOI: https://doi.org/10.1007/978-3-642-72994-2

  • Publisher: Springer Berlin, Heidelberg

  • eBook Packages: Springer Book Archive

  • Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer-Verlag GmbH, DE, part of Springer Nature 1987

  • Softcover ISBN: 978-3-540-18358-7Published: 09 December 1987

  • eBook ISBN: 978-3-642-72994-2Published: 07 March 2013

  • Series ISSN: 0301-5556

  • Series E-ISSN: 2192-7065

  • Edition Number: 1

  • Number of Pages: VII, 91

  • Number of Illustrations: 21 b/w illustrations

  • Topics: Cell Biology, Zoology

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