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  • Diencephalon  (1)
  • zentrale thermosensitive Strukturen  (1)
  • 1970-1974  (1)
  • 1970-1974  (1)
  • 1
    ISSN: 1432-2013
    Keywords: Temperature Regulation ; Control of Shivering ; Central Thermosensitive Structures ; Spinal Cord ; Diencephalon ; Temperaturregulation ; Steuerung des Kältezitterns ; zentrale thermosensitive Strukturen ; Rückenmark ; Zwischenhirn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In young guinea pigs the ascending pathways from the spinal thermosensitive region were studied by means of 1. microelectrode recording and 2. micro-electrocoagulation. In the first series of studies, impulse frequency was recorded from single units of the spinothalamic tract which responded to a temperature rise in the spinal segments C5-T2 with an increase of discharge frequency. At a spinal cord temperature of 38–39° C these units showed a firing rate of 1–5 imp./sec; local heating of the spinal cord (dT/dt=0.1° C/sec) to 40–41° C caused an increase in discharge frequency to 20–25 imp./sec. The mean static impulse frequency was 3 imp./sec at a spinal cord temperature of 39° C, and 10 imp./sec at a spinal cord temperature of 42.5° C. In the second series of studies bilateral RF-coagulations were carried out in different sites of the diencephalon. These experiments showed that the ascending fibres from the spinal thermosensitive region connect the thermosensitive spinal region with a hypothalamic “temperature control centre”.
    Type of Medium: Electronic Resource
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