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  • Scanning electron microscopy  (5)
  • Springer  (5)
  • American Physical Society
  • BioMed Central
  • Public Library of Science
  • Springer Nature
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  • Springer  (5)
  • American Physical Society
  • BioMed Central
  • Public Library of Science
  • Springer Nature
    • +
Years
  • 1
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of the human cerebral ventricular system (1973)
    Springer
    Cell & tissue research 139 (1973), S. 61-68 
    Details
    ISSN: 1432-0878
    Keywords: Fourth ventricle ; Human ; Ependyma ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Scanning electron microscopy was used to assess the ultrastructural differences exhibited by the varigated ependymal lining of the near-term human fetal 4th ventricle. The central portion of the fourth ventricular floor, including the median sulcus is punctuated by numerous clumps of cilia. The density of cilia here is not as great as that described for other regions of the human cerebral ventricular system; accordingly, underlying substructure can be noted. There are distinct differences between ependymas that line the floor of the fourth ventricle with those of the adjacent area postrema. The latter region possesses not cilia, but instead exhibits a dense knap of microvilli. The ultra-architecture of the choroid plexus is relatively similar to that of other circumventricular organs with the exception that it possesses small isolated groups of cilia as well as microvilli. These findings are discussed with respect to the dynamics of local CSF movement and flow, ependymoabsorption and ependymosecretion
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307461
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  • 2
    Electronic Resource
    Electronic Resource
    Ultrastructural analysis of the human cerebral ventricular system (1974)
    Springer
    Cell & tissue research 150 (1974), S. 389-397 
    Details
    ISSN: 1432-0878
    Keywords: Choroid plexus ; Human fetus ; Modifications during development ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ultrastructural organization of the human fetal choroid plexus was assessed with scanning electron microscopy. The membranous modifications of choroidal ependymal cells differ remarkably between 11 and 20 weeks of intrauterine development and suggest a variable functional capacity at different times of ontogenesis. Based upon existing data coupled with the ultra-architectural organization of cilia, clavate and linear microvilli are seen with scanning electron microscopy, a multiple functional role is hypothesized for choroidal ependymal cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220145
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  • 3
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of the third ventricle of sheep (1973)
    Springer
    Cell & tissue research 136 (1973), S. 169-176 
    Details
    ISSN: 1432-0878
    Keywords: Cerebral ventricles ; Ependyma ; Sheep ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Scanning electron microscopy of the third ventricle of sheep demonstrates areas of ciliated ependymal cells at the dorsal and middle third. The cilia of the dorsal portion of the ventricle have biconcave discs that are attached to each cilium by a slender stalk. The lower third and floor of the ventricular wall, as well as the pineal recess, are largely covered by ependymal cells that possess numerous microvilli with only a few isolated cilia scattered along cell surfaces. The infundibular recess is papillated with apical blebs of the ependymal cells that project into the lumen of the recess. Measurements of these surface elements indicate an average diameter of 0.28 μ for cilia, 0.10 μ for microvilli and 0.50 μ for the apical blebs of the infundibular recess. The functional significance of the regional differences in surface structures is discussed in relation to cerebrospinal fluid movement, ependymoabsorption and ependymosecretion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307437
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  • 4
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of fused mouse placentas and associated uterine bed (1980)
    Springer
    Cell & tissue research 210 (1980), S. 349-351 
    Details
    ISSN: 1432-0878
    Keywords: Fused placentas ; Uterine bed ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The decidual surface of two fused placentas and the associated uterine bed were examined by scanning electron microscopy. The compact decidua basalis fits into a uterine depression filled with coarse fibers which is surrounded by a smooth area that gradually becomes folded. Placental fusion due to twinning or crowding is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237622
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  • 5
    Electronic Resource
    Electronic Resource
    Morphology of canine gallbladder (1983)
    Springer
    Cell & tissue research 233 (1983), S. 161-174 
    Details
    ISSN: 1432-0878
    Keywords: Scanning electron microscopy ; Canine ; Gallbladder ; Epithelium ; Transmission electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Examination of the surface topography of canine gallbladder epithelium using the scanning electron microscope reveals subtle changes in the morphology of the cellular components between the full and empty states. In the full state large bays exist between relatively low, ridge-like crests or folds of mucosa which gradually increase in height as the gallbladder empties causing a subsequent reduction in size and volume of the bays. The relaxed gallbladder exhibits an irregular arrangement of tall, closely apposed mucosal folds with intervening deep valleys. The degree of apical convexity of individual epithelial cells will increase as the mucosal folds begin to relax. Other mucosal features most easily observed in the full state were small pit-like intraepithelial glands. The apical surfaces of the epithelial cells exhibit a densely uniform microvillus border and occasional membrane-bounded cytoplasmic protrusions (apical bullae) extending out into the lumen of the organ. The lateral cell membranes and basal lamina were also examined. Correlative methacrylate and transmission electron microscopic findings are included. The functional aspects of these morphological alterations and apical protrusions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222240
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