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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal of Morphology 84 (1949), S. 411-426 
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
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  • 2
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The vessels of the forelimb stump and regenerate were perfused with Prussian blue and studied as whole mounts and in histological sections to reveal the condition and disposition of the blood vessels in various stages of forelimb regeneration in the adult newt, Triturus viridescens. The development of the vessels in the regenerate seemed to be comparable in all its essential features to that which has been described for the normal developing limb in urodele, chick and pig embryos.The first signs of regeneration of the vessels are seen during wound healing when fine sprouts appear from the old vessels near the amputation wound. These grow and anastomose, but are limited to the transition region between old and new tissues and avoid the growing blastema during the early stages of regeneration. As the regenerate enlarges into a conical structure vessels invade the proximal part of the growth and avoid the distal regions. It is only during the stages of histogenesis and morphogenesis that vessels grow into more distal regions. The regions of most active enlargement of the early or later regenerate are those most poorly vascularized. These results are discussed against the background of the activity of certain enzymes during regeneration. In the advanced regenerate, preferential channels are consolidated until in the palette and digital stages the pattern of the blood vessels resembles that of the normal limb.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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