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Physics of the sympathetic nervous system

Clevenger, S. V.

Comparative physiology and psychology: A discussion of the evolution and relation of the mind and body of man and animals, 1885, p.151-156

Chicago, IL: Jansen, McClurg, & Co

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  • Título:
    Physics of the sympathetic nervous system
  • Autor: Clevenger, S. V.
  • Assuntos: Animal Experimental & Comparative Psychology ; Nerve Tissues ; Neuroanatomy ; Neurobiology ; Neurochemistry ; Neurogenesis ; Neurology ; Neurons ; Neurosciences ; Neurotransmission ; Sympathetic Nervous System
  • É parte de: Comparative physiology and psychology: A discussion of the evolution and relation of the mind and body of man and animals, 1885, p.151-156
  • Descrição: With regard to "trophic nerves," the general belief is gaining ground that none such exist, but that nutritive changes which follow nervous lesions are referable to vascular disturbances. This is so satisfactory that it at once transfers the mysterious and inscrutable to simple and knowable processes. Trophic influences are placed within vaso-motor precincts. Lawaschew, of St. Petersburg, under Professor Botkin, elaborates the subject, and holds that dilatation of vessels consequent on nerve lesions are often precursors of "trophic changes" in the tissues and due to "irritation of the vasodilator nerves," and not to paralysis of the vaso-motors. The foremost vaso-motor stimulant is temperature difference, but other modes of molecular motion influence that system either directly or indirectly. The vascular function is a highly nutritive one, and where first one part of the body and then another demanded blood supply in excess of other parts, just such slow rhythmic pulsatile motions as are observed in the vascular system would follow engorgement and dilatation of one part would passively effect distention of distant parts subjected to regurgitant pressure, a to-and-fro irritation of the arterial circular muscles would arrange commissural tracts facilitating transfer of equilibration and maintenance of tonus. Dilatation of one part stimulating molecular diffusion from other parts to act as constrictors, the calibers of the vessels are kept within limits. (PsycINFO Database Record (c) 2011 APA, all rights reserved)
  • Editor: Chicago, IL: Jansen, McClurg, & Co
  • Idioma: Inglês
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