Ultrastructural Study of the Connective Tissue of Parascaris Equorum

  • Federica Cheli
  • Laura Vitellaro-Zuccarello
Part of the NATO ASI Series book series (NSSA, volume 93)


The connective tissues of nematodes consist of thin layers lining the viscera and the internal surface of the body wall. Although biochemical analyses (Fujimoto, 1968; Hung et al., 1980) and X-ray diffractography (Rudall, 1955) showed that intestinal and pseudocoelomic membranes contain collagenous components, no periodic fibrils have so far been detected (Wright et al., 1972). Nevertheless, their existence cannot be completely ruled out, as knowledge of the distribution and structure of connective tissues of Ascaridida is scanty. Since this point deserves closer examination for the functional relevance of the submicroscopic organization of collagen, we studied the ultrastructure of the connective tissues in the intermuscular septa, neural sheath, pseudocoelomic membranes, intestine and uterus walls of Parascaris equorum.


Basal Lamina Ascaris Lumbricoides Lamina Densa Intermuscular Septum Lateral Cord 
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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Federica Cheli
    • 1
  • Laura Vitellaro-Zuccarello
    • 1
  1. 1.Dipartimento di Fisiologia e Biochimica Generali Sezione di Istologia ed Anatomia UmanaUniversità degli Studi di MilanoMilanoItaly

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