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  • Articles  (50)
  • Articles: DFG German National Licenses  (50)
  • Latest Papers from Table of Contents or Articles in Press
  • Scanning electron microscopy  (31)
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  • Springer  (50)
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  • 2020-2024
  • 2015-2019
  • 1985-1989  (21)
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  • 1970-1974  (29)
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  • Medicine  (50)
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  • Articles  (50)
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  • Articles: DFG German National Licenses  (50)
  • Latest Papers from Table of Contents or Articles in Press
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  • Springer  (50)
  • American Chemical Society (ACS)
  • American Society of Hematology
  • Wiley-Blackwell  (4)
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  • 2020-2024
  • 2015-2019
  • 1985-1989  (21)
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  • 1970-1974  (29)
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  • 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
    The olfactory epithelium of the lantern fish, Tarletonbeania crenularis (myctophidae) (1973)
    Springer
    Cell & tissue research 138 (1973), S. 31-39 
    Details
    ISSN: 1432-0878
    Keywords: Olfaction ; Fishes ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The olfactory rosettes of Tarletonbeania crenularis are contained within paired membranous olfactory chambers opening to the exterior through a pair of nostrils. The margins of the anterior nostril form an infundibulum that may direct a current of water between the lamellae of the olfactory rosette and out of the posterior nostril as the fish swims through the water. The number of lamellae in a rosette is variable, and each consists of an olfactory epithelium containing receptor cells, supporting cells, basal cells, mucus cells and bipolar neurons. The olfactory surface for the most part is nonciliated and appears rugose in scanning electron micrographs. Receptor elements are located along the central axis of the rosette and on the surfaces of the distal margins of the lamellae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307076
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  • 3
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of the retinal pigment epithelium in chick embryos and chicks (1973)
    Springer
    Cell & tissue research 146 (1973), S. 543-552 
    Details
    ISSN: 1432-0878
    Keywords: Retinal pigment cells ; Retinal cell differentiation ; Retinal receptor cells ; Chicken ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The surface of the retinal pigment epithelium in chick embryos and young chicks was studied by scanning electron microscopy. It is demonstrated, that pigment cells not only have fine processes on their retinal surface, but also to a considerable extent on their basal cell membrane. The occurrence of these processes was studied during differentiation of the retina. The appearance of these surface differentiations can no longer be interpreted solely as the result of membrane infoldings but to be mainly the result of membrane sprouting processes. The formation of processes on the retinal surface of pigment cells precedes that of the processes on the choroidal surface. The length of the mature processes on the apical surface is greater than the length of those on the basal surface. The appearance of the fine cell processes is correlated with the functions of pigment epithelium and with the differentiation of retinal receptor cells. This study illustrates that the technique of scanning electron microscopy is not limited to the examination of naturally occurring tissue surfaces, but can be extended to the investigation of tissue fractures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02347182
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  • 4
    Electronic Resource
    Electronic Resource
    The development and fine structure of the ultimobranchial glands in larval Rana temporaria L. (1974)
    Springer
    Cell & tissue research 148 (1974), S. 69-82 
    Details
    ISSN: 1432-0878
    Keywords: Ultimobranchial glands ; Anuran larvae ; Metamorphosis ; Ultrastructure ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The fine structure of ultimobranchial (UB) gland cells from Rana temporaria larvae 48 h after hatching until the completion of metamorphosis is described. A single UB cell type is present, believed to be the characteristic C cell, in which secretory granules are first detectable in 8 day post-hatching larvae. These secretory granules show an intimate association with lipid droplets. Unusual membranous and crystalloid inclusions, which may represent yolk platelets, are found in UB glands of very small larvae. The significance of a range of UB organelles is discussed and some scanning electron micrographs presented. This report is believed to be the first published ultrastructural and scanning electron microscope study of larval anuran UB glands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224319
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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    Taste bud types in fishes (1974)
    Springer
    Cell & tissue research 153 (1974), S. 151-165 
    Details
    ISSN: 1432-0878
    Keywords: Taste buds ; Fishes ; Chemoreceptors and Mechanoreceptors ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Within the epithelium of the head gut of the sword-tail (Xiphophorus helleri Heckel) there are three types of taste buds that can be identified with certainty in the scanning electron microscope. The breathing valves, which are situated behind the mouth region, bear relatively high epidermal papillae in which type I taste buds can be found. The middle region of the head gut is mostly occupied by low epidermal papillae containing type II taste buds. Type III taste buds are present within the metabranchial head gut; they never rise above the normal level of the epithelium. Taste buds of each type show two kinds of receptor villi within their receptor areas: tall villi (about 1,5×0,5 μm) and small villi (about 0.5×0.2 μm). A few tall villi belonging to solitary chemosensory cells are situated between the superficial epithelial cells of the tongue. In addition, the surface of the epidermal cells shows a delicate microridge system.—It is postulated that the taste buds of different types serve different functions: Taste buds within epidermal papillae may act both as chemoreceptors, and mechanoreceptors. Taste buds that never rise above the normal level of the epithelium perhaps act predominantly as chemoreceptors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226604
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  • 7
    Electronic Resource
    Electronic Resource
    Rasterelektronenmikroskopische Beobachtungen an pinealen Sinneszellen der Forelle,Salmo gairdneri (Teleostei) (1973)
    Springer
    Cell & tissue research 138 (1973), S. 585-589 
    Details
    ISSN: 1432-0878
    Keywords: Salmo gairdneri (Teleostei) ; Pineal organ ; Photoreceptor cells ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Im rasterelektronenmikroskopischen Bild des Pinealorgans vonSalmo gairdneri kann man drei verschiedene Außengliedtypen der Photorezeptoren unterscheiden. Diese Ergebnisse werden im Hinblick auf die Ultrastrukturkonzepte von Rüdeberg (1969) und Bergmann (1971) diskutiert. Rasterelektronenmikroskopische Studien erleichtern die anatomische Klassifizierung von pinealen Sinneszellen aufgrund ihrer Außengliedform.
    Notes: Summary The outer segments of pineal photoreceptor cells ofSalmo gairdneri were investigated with the scanning electron microscope. The scanning electron micrographs showed three different types of outer segments. These results are discussed with respect to the ultrastructural concepts of Rüdeberg (1969) and Bergmann (1971). Scanning electron microscopy permits better anatomical classification of pineal photoreceptor cells according to the form of their outer segments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572298
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  • 8
    Electronic Resource
    Electronic Resource
    A scanning electron microscope study of the papilla basilaris of Gekko gecko (1973)
    Springer
    Cell & tissue research 136 (1973), S. 307-328 
    Details
    ISSN: 1432-0878
    Keywords: Ductus cochlearis ; Lizard ; Sensory hair cells ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The sensory hair cells of the ventral 2/3 of the papilla basilaris of Gekko gecko are divided into anterior (pre-axial) and posterior (post-axial) portions by a mid-axial gap or hiatus where there are no hair cells. There is no separation of the hair cells in the dorsal third of the papilla. There are three tectorial membrane modifications: an attached thickened membrane covering the pre-axial hair cells, sallets covering the post-axial hair cells, and an attached filamentous membrane covering the dorsal hair cells. The number of hair cells is greatest ventrally and decreases dorsally. There are approximately 2000 to 2100 hair cells. The kinocilia of the hair cells of the anterior halves of both the pre- and the post-axial vertical hair-cell rows are oriented posteriorly, while the kinocilia of the posterior halves are oriented anteriorly. The kinocilia of the hair cells of the dorsal third of the papilla are mostly oriented posteriorly. Thus, kinocilial orientation of the ventral 2/3 of the papilla is doubly bidirectional, and the dorsal 1/3, largely unidirectional.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307037
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  • 9
    Electronic Resource
    Electronic Resource
    The organization and gross mineralization patterns of the collagen fibres in sharpey fibre bone (1974)
    Springer
    Cell & tissue research 148 (1974), S. 83-96 
    Details
    ISSN: 1432-0878
    Keywords: Sharpey fibre bone ; Collagen orientation ; Mineralization ; Mammals ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Sharpey fibre bone specimens from cranial sutures and muscle attachment sites of rhesus monkeys and rats, and tooth sockets of several mammals (man, rhesus monkey and rat specimens mainly) were fixed, and either dried by critical point drying or freeze drying, or made anorganic with 1,2 ethane diamine or sodium hypochlorite, washed and airdried. The bone was examined by scanning electron microscopy. The packing density of the extrinsic fibres affected their cross sectional shape, the well separated fibres being the most uniform. Long parallel rows and groups of extrinsic fibres were observed. The fibre units that made up the Sharpey fibre bundles were sometimes distinct and mineralized as units. Mineralization was generally similar to the varied patterns encountered in root cementum. The diameters of the extrinsic fibres were similar at all sites and in all species; those in socket bone differed little from those in cementum. The intrinsic fibre orientation, although constant over fairly large areas, showed no consistent relation to the direction of entry of the extrinsic fibres. We would like to thank Mrs. E. Bailey and Mr. P. S. Reynolds for technical assistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224320
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  • 10
    Electronic Resource
    Electronic Resource
    Rastermikroskopische Untersuchungen der olfaktorischen Rezeptoren im Riechepithel des Goldfisches (Carassius auratus) (1973)
    Springer
    Cell & tissue research 138 (1973), S. 439-454 
    Details
    ISSN: 1432-0878
    Keywords: Olfactory mucosa ; Olfactory receptors ; Fish ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Durch rastermikroskopische Untersuchungen lassen sich mehrere, morphologisch unterschiedliche Rezeptoren in der Regio olfactoria des Goldfisches (Carassius auratus) unterscheiden. Dabei muß vorläufig offen bleiben, ob den morphologischen Varianten entsprechende funktionelle Unterschiede zuzuordnen sind. Auf den Lamellen der Riechrosette sind Sinneszellareale und in ihnen Flimmerzellgruppierungen zu beobachten. Die wechselnde Dichte der verschiedenen Rezeptoren in einzelnen Sinneszellarealen wird betont. Die Befunde werden zu Riechtheorien und zu der Frage in Beziehung gesetzt, ob es eine räumliche Zuordnung von Zonen des Riechepithels zu bestimmten Anteilen des Bulbus olfactorius gibt.
    Notes: Summary Investigations by scanning electron microscopy demonstrate the existence of several morphologically different types of olfactory receptors in Carassius auratus. The structural differences, however, do not allow a definite classification of sensory cells into functionally different elements. The olfactory organ has a central axis with lamellae emerging at both sides of it. On these lamellae sensory areas with densely packed receptor cells and with groups of ciliated cells exist. The terminals of the receptor cells show a great polymorphism of their surface. The morphologically different receptor cells are not equally distributed over the olfactory organ but differ from each other in quantity and density. The morphological results are discussed in relation to olfactory theories and in relation to the question whether there are topographical projections between the peripheral olfactory organ and the Bulbus olfactorius.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307104
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