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  • Digitale Medien  (2)
  • Atropinesensitive vasodilation  (1)
  • Hemmende absteigende Fasern  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Bulbar inhibition of spinal and supraspinal sympathetic reflex discharges (1971)
    Springer
    Pflügers Archiv 326 (1971), S. 324-333 
    Details
    ISSN: 1432-2013
    Schlagwort(e): Renal Sympathetic Reflex ; Spinal Sympathetic Reflex ; Supraspinal Sympathetic Reflex ; Noradrenaline ; Baroceptor Afferent Stimulation ; Inhibitory Descending Pathways ; Sympathische Reflexe ; Spinale sympathische Reflexe ; Supraspinale sympathische Reflexe ; Noradrenalin ; Bulbäre depressorische Reizung ; Hemmende absteigende Fasern
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary 1. In chloralose anesthetized cats, the sympathetic reflex discharge was recorded from the renal sympathetic nerve. 2. The early-spinal and late-supraspinal sympathetic reflex discharges were elicited by single electrical stimulation of the thoracic dorsal roots. 3. Increased excitation of the baroceptor afferents produced by a rise of blood pressure after injection of noradrenaline caused strong inhibitition of the latesupraspinal reflex discharge. The early-spinal reflex discharge was only rarely affected. 4. Electrical stimulation of the medullary depressor area caused inhibition of the spinal and supraspinal reflex discharges. 5. It is concluded that spinal reflex pathways receive some inhibitory descending influences from the medulla oblongata.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00586996
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Activation and inhibition of muscle and cutaneous postganglionic neurones to hindlimb during hypothalamically induced vasoconstriction and atropine-sensitive vasodilation (1976)
    Springer
    Pflügers Archiv 361 (1976), S. 231-240 
    Details
    ISSN: 1432-2013
    Schlagwort(e): Vasoconstrictors ; Vasodilators ; Muscle ; Hypothalamic stimulation ; Atropinesensitive vasodilation ; Single unit analysis ; Cat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary 1. Discharge patterns in postganglionic neurones to muscle and to hairy skin of the hindlimb of chloralose anaesthetized cats were investigated during electrical hypothalamic stimulation which induced either vasoconstriction or atropine sensitive vasodilation in the skeletal muscle. 2. Spontaneously active postganglionic neurones to muscle were activated both during hypothalamically induced vasoconstriction and active vasodilation. Stimulation of the hypothalamic vasodilator area induced mostly a sequence of activation-depression-activation in these neurones. Stimulation of cutaneous Group IV afferents elicited reflexes in these neurones; repetitive high frequency stimulation of large diameter afferents in the vago-depressor nerve produced depression of spontaneous activity followed by a postinhibitory excitation. The characteristics of these neurones fit those that would be expected of vasoconstrictors. 3. Normally inactive postganglionic neurones to skeletal muscle could only be activated during hypothalamically induced atropine sensitive vasodilation. These neurones exhibit no reflexes on somatic stimulation. The axons of these neurones conduct faster than those of the spontaneously active postganglionic neurones. It is likely that they are cholinergic vasodilator neurones. 4. Most of the cutaneous postganglionic neurones to hairy skin were activated during stimulation of both the hypothalamic vasoconstrictor and the vasodilator areas. These neurones have the characteristics of cutaneous vasoconstrictor neurones. Part of the cutaneous not spontaneously active postganglionic neurones could neither be activated from the hypothalamus nor by somatic stimuli.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00587287
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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