Ultrastructural Study of the Connective Tissue of Parascaris Equorum
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.
KeywordsBasal Lamina Ascaris Lumbricoides Lamina Densa Intermuscular Septum Lateral Cord
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