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  • Capillaries  (2)
  • Microcorrosion casts  (2)
  • Misgurnus fossilis L  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Fine structure of capillaries in the pecten oculi of the sparrow, Passer domesticus (1973)
    Springer
    Cell & tissue research 146 (1973), S. 281-292 
    Details
    ISSN: 1432-0878
    Keywords: Eye ; Bird ; Pecten oculi ; Capillaries ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The pecten oculi of the sparrow consists of capillaries, pigment cells and a superficial membrane. Because of the loose structure of the first two components broad intercellular spaces occur in the pecten. The capillary wall consists of endothelial cells and a perivascular membrane. The bodies of the endothelial cells are flattened, while the plasmalemma of both their surfaces (basal and luminal) is strongly folded and forms numerous microfolds with an average thickness of 700 Å. The height of the inner microfolds is 1.4–1.8 μm, the outer microfolds measure 1.3–1.6 μm. They lie densely packed side by side and are separated by recesses of the capillary lumen ca. 500 Å wide. Due to this the surface of the endothelial cell is increased by approximately 20-fold. The adjoining endothelial cells abut or overlap with margins, and are joined by the zonulae adherentes. Pigment cells form numerous processes and microvilli. Some rest on the capillary walls, while others penetrate the superficial membrane of the pecten or fill the intercellular spaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00307352
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of microcorrosion casts of the vascular bed in the skin of the spotted salamander, Salamandra salamandra L. (1979)
    Springer
    Cell & tissue research 196 (1979), S. 153-162 
    Details
    ISSN: 1432-0878
    Keywords: Salamander skin ; Skin capillaries ; Poison gland capillaries ; Microcorrosion casts ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Microcorrosion casts of blood vessels in the skin of the spotted salamander, Salamandra salamandra L., were studied using scanning electron microscopy. The investigated vessels include a subepidermal network of respiratory capillaries and the vessels of poison glands. A hypothesis is proposed, according to which both types of vascular beds possess a common origin. Probable factors involved in the differentiation of the primary netword of the subepidermal vessels in larvae are indicated and speculation concerning the supposed mosaic type of circulation in the capillaries of the subepidermal respiratory bed is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236356
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Fine structure of capillaries in the conus papillaris of the limbless lizard, Ophisaurus apodus (Anguidae, Lacertilia) (1977)
    Springer
    Cell & tissue research 182 (1977), S. 421-424 
    Details
    ISSN: 1432-0878
    Keywords: Lizard ; Eye ; Conus papillaris ; Capillaries ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The conus papillaris of Ophisaurus apodus consists of blood vessels and pigment cells. The capillary walls are formed by endothelial cells, scarce pericytes and basal laminae. The cell bodies are attenuated and the plasmalemma of their luminal and abluminal surfaces forms microvilli. The perivascular space is well developed, containing nerve fibers and their terminals. Similar localization and ultrastructure of avian pecten oculi and lacertilian conus papillaris suggest homology of these structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219776
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fine structure of pars neuro-intermedia of the loach, Misgurnus fossilis L. (1970)
    Springer
    Cell & tissue research 105 (1970), S. 259-275 
    Details
    ISSN: 1432-0878
    Keywords: Hypophysis ; Pars Neuro-Intermedia ; Misgurnus fossilis L ; Structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Two types of glandular cells are present in the pars intermedia of the loach, Misgurnus fossilis. Basophils are characterized by the presence in their cytoplasm of numerous secretory granules containing electron-dense and homogeneous material and by scarce endoplasmic reticulum. ‘Weak’ acidophils contain in their cytoplasm abundant endoplasmic reticulum and numerous granules of different electron densities. The distal part of the neurohypophysis is composed of several types of neurosecretory axons, strongly branched pituicytes, numerous capillaries, and connective tissue elements. The axon terminals form the neuroglandular, neurovascular and neurointerstitial contacts. Some axon terminals are closely apposed to the basement membrane separating neurohypophysis from meta-adenohypophysis. At points of absence of continuity of this membrane, some neurosecretory axons become directly contiguous with cytoplasmic membranes of the intermedia cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335476
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Model of skin vascularization in Rana esculenta L.: Scanning electron microscopy of microcorrosion casts (1978)
    Springer
    Cell & tissue research 191 (1978), S. 539-548 
    Details
    ISSN: 1432-0878
    Keywords: Frog skin ; Respiratory capillaries ; Capillary networks ; Microcorrosion casts ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Microcorrosion casts of blood vessels in the skin of Rana esculenta L. were examined by means of scanning electron microscopy with particular reference to the subepidermal network of respiratory capillaries. Due to the fact that arteries and veins lie in the deeper layers of the stratum spongiosum of the corium, the respiratory vessels form a morphologically homogeneous network. Functionally, however, this network is subdivided into small areas with a centripetal direction of blood flow. The deep capillary net, situated at the base of the stratum compactum of the corium, is not so dense as the respiratory network and does not directly communicate with it. Alveolar glands of the skin have no effect on the distribution of capillaries in the two networks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219816
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    Paper (German National Licenses)
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