File:Les nouvelles idées sur la structure du système nerveux - chez l'homme et chez les vertébrés (1894) (14780531334).jpg

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Identifier: lesnouvellesid00ram (find matches)
Title: Les nouvelles idées sur la structure du système nerveux : chez l'homme et chez les vertébrés
Year: 1894 (1890s)
Authors: Ramón y Cajal, Santiago, 1852-1934 Azoulay, L
Subjects: Neuroanatomy Neuroanatomy
Publisher: Paris : C. Reinwald & Cie.
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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xpansions des cellules de ces gan-gUons, nous dirons seulement que, malgré toute notre atten-tion, nous navons rien pu trouver qui les différenciât en ex-pansions courtes ou protoplasmiques et longues ou fibres deRemak. h. Fibres de passage (fig. 36, A, c, e, f). — En outre des ex-pansions produites par les cellules, tout ganglion possède uneinfinité de fibres fines et grosses, simples continuations desfibres amenées au gangUon par les fascicules. Ces fibres traversent parfois le ganglion pour faire partiedes faisceaux qui sortent du côté opposé ; dautres passentdun fascicule à Tautre sans sinsinuer entre les cellules. Il 144 GANGLIONS VISCERAUX nest pas rare, non plus^ de voir quelques-unes de ces fibresse bifurquer en arrivant au ganglion, et fournir ainsi unebranche à deux ganglions différents. Nous devons faire observer que ni les cellules, ni leursexpansions ne prennent le précipité de chromate dargent,lorsque ces fibres de passage se trouvent bien coloriées dans
Text Appearing After Image:
FiG. 38. Coupe parallèle aux tuniques musculaires de lintestin de la souris âgée de quelquesjours. — Plexus dAuerbach, vu de face, avec les épaississements ganglionnairesdont les cellules ne se sont pas imprégnées. .4 nerf sympathique venu avec une artère du mésentère; B bifurcation du nerfsympathique; C autre nerf sympathique afférent ; i^ grosses fibres sympathiques;b fibres fines; c cavité destinée aux cellules nerveuses du ganglion ; d collatéralesterminées à lintérieur des ganglions. GANGLIONS VISCERAUX I45 une préparation, ce qui a lieu très souvent. Cela sembleraitindiquer une différence de nature entre ces fibres et cellesqui naissent des cellules. c. Collatérales (fig. ^6, c, ^,/). — On parvient à distinguer,à laide dobjectifs apochromatiques, dans lintérieur des gan-glions, des fibres extrêmement fines, à varicosités très abon-dantes. Au lieu de traverser de part en part le ganglion commeles fibres de passage, ces fibres ont un trajet flexueux

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  • bookid:lesnouvellesid00ram
  • bookyear:1894
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Ram__n_y_Cajal__Santiago__1852_1934
  • bookauthor:Azoulay__L
  • booksubject:Neuroanatomy
  • bookpublisher:Paris___C__Reinwald___Cie_
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:165
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
  • BHL Collection
Flickr posted date
InfoField
30 July 2014



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