Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . 30, borrowed from Meynert (loc. cit., Fig. 233), representing the anteriorsection of the brain of a monkey (Cercocebus cinomolgus), very well exhibits thedirection of the principal fasciculi of the antero-posterior system of are to be seen the fibres uniting two convolutions (fibrcz propria)^ welldescribed by Gratiolet, ^& fasciculus arcuatus, the fibres of which extend beneaththe corpus callosum from the occipital to the frontal lobe ; the inferior longitudinalfas
Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . 30, borrowed from Meynert (loc. cit., Fig. 233), representing the anteriorsection of the brain of a monkey (Cercocebus cinomolgus), very well exhibits thedirection of the principal fasciculi of the antero-posterior system of are to be seen the fibres uniting two convolutions (fibrcz propria)^ welldescribed by Gratiolet, ^& fasciculus arcuatus, the fibres of which extend beneaththe corpus callosum from the occipital to the frontal lobe ; the inferior longitudinalfasciculus which joins the occipital lobe to the extremity of the sphenoidal lobe, andfinally, the fasciculus uncinatus, which runs nearly vertical and which joins thefrontal to the sphenoidal lobe. I04 DISEASES OF THE BRAIN. notice particularly the inferior part, or the posterior cornu ofthe ventricle which here plays an important rSle in topogra-phy (Fig. 32). Fibres of Optic QialamuSextending to the periphery Cauda ted nucleus litres of caudaled nucleusextending toTlhe. periphery JDireot^ Fig. 31.—Scheme illustrative of the different orders of peduncular fibres.—(Hug-ue-niti.) The caudated ganglion has been detached and its outlinesare represented by a dotted line ; its diverging fibres, that is CEREBRAL PORTION OF THE OPTIC NERVES. 105 to say, the plane of the cortico-striated radiating fibres, havealso been removed. Thus is uncovered the plane of the cor-tico-optic radiating fibres. In these last fasciculi it is possibleto distinguish three groups of fibres : ist, the anterior onescalled anterior roots of the thalami-optici (Vordere Stiel), theyare directed towards the frontal regions ; 2d, others are mid-dle or lateral; 3d, and finally, the posterior ones are desig-nated by Gratiolet, who first ^ well studied them, under thename of optic cerebral expansions, or expansion of the opticnerves {Sehstrahlungen). The fasciculi of the last group,which are the special
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishern, booksubjectbrain
