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Aufbau und Feinstruktur der Muskelsysteme von Turbanella cornuta Remane (Gastrotricha, Macrodasyoidea) = Light and electron microscopical features of the muscular system from Turbanella cornuta Remane (Gastrotricha, Macrodaysoidea)
Teuchert, G. (1974). Aufbau und Feinstruktur der Muskelsysteme von Turbanella cornuta Remane (Gastrotricha, Macrodasyoidea) = Light and electron microscopical features of the muscular system from Turbanella cornuta Remane (Gastrotricha, Macrodaysoidea). Mikrofauna des Meeresbodens, 39. Akademie der Wissenschaften und der Literatur: Mainz. ISBN 3-515-01893-X. (223-246) pp.
Deel van: Mikrofauna des Meeresbodens. Akademie der Wissenschaften und der Literatur: Wiesbaden. ISSN 0342-3247
Peer reviewed article  
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Trefwoorden
    Morphology
    Turbanella cornuta Remane, 1925 [WoRMS]
    Marien/Kust
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  • Teuchert, G.
Abstract
    This work is an electron microscopical study of the 1. longitudinal, 2. circular and 3. pharyngeal muscular systems from the marine gastrotrich Turbanella cornuta Remane. By relative position longitudinal and circular muscle cells form one functional unity. While the outer circular muscle cells are connected to one layer and separate by detaching cells a central from two lateral spaces, the inner longitudinal muscle cells have dissolved into single strands of muscular fibres. The characteristic of the pharyngeal muscle epithelium is that fibrils branch off and run into radial, longitudinal and circular directions; the bounderies between adjacent cells are sinous. In its fine structure the muscular system of the body wall is oblique striated, whereas the pharyngeal muscle fibres arc cross striated. There are differences in degree of organization of the myofilaments between longitudinal and circular muscle cells: the filaments of the mostly stressed longitudinal fibres at the ventrolateral side of the body are more regular and denser arranged than of other longitudinal fibres; in circular muscle cells even larger areals stay free between bundles of filaments. Structural specializations between muscle systems in marine gastrotrichs reflect their functional specializations.
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