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Träfflista för sökning "L773:0036 4827 srt2:(1980-1989)"

Sökning: L773:0036 4827 > (1980-1989)

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1.
  • Hallberg, Eric, et al. (författare)
  • An ascothoracid compound eye (Crustacea)
  • 1985
  • Ingår i: Sarsia. - : Informa UK Limited. - 0036-4827. ; 70, s. 167-171
  • Tidskriftsartikel (refereegranskat)abstract
    • The ultrastructure of the compound eye of an ascothoracid larva — the only known occurrence of compound eyes in the Ascothoracida — is described. The ommatidia of apposition type consist of a crystalline cone composed of three cells and up to six retinular cells. Poor fixation of the scarce material allows no safe judgement about the number of retinular cells and the nature of two distal cells surrounding the crystalline cones. The structure of these compound eyes most closely resembles the cirriped compound eye.
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2.
  • Danielsen, N, et al. (författare)
  • Axonal growth in mesothelial chambers. The role of the distal nerve segment
  • 1983
  • Ingår i: Scandinavian Journal of Plastic and Reconstructive Surgery. - 0036-5556. ; 17:2, s. 25-119
  • Tidskriftsartikel (refereegranskat)abstract
    • An experimental model is presented for studying nerve regeneration over gaps of various lengths between the both ends of a severed nerve. After transferring left and right sciatic nerves of rat to the back, the gap between the two nerve ends could be bridged by a preformed, tube-shaped mesothelial chamber of a desired length. When the gap length was 10 mm or less, a well developed nerve structure was generated in the chamber between the nerve ends, and axons from the left sciatic nerve reinnervated muscles in the right limb via the right sciatic nerve. When the gap length was extended to 15 mm or more no such regeneration occurred. When no distal nerve end was introduced into the chamber, there was a limited growth into this chamber over only 5-6 mm. This "limited growth phenomenon" is discussed with respect to a lack of "trophic" or cellular support from a distal nerve segment. It is also proposed that the termination of growth, seen under these circumstances, may suggest a new principle for avoiding the development of neuromas after nerve transections.
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Elofsson, Rolf (1)
Dahlin, L. B. (1)
Lundborg, G (1)
Danielsen, N (1)
Lee, Y F (1)
Hallberg, Eric (1)
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Grygier, M J (1)
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