Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . easily recognizethe precise locality, and the mode of formation and exten-sion of the various centres of central hemorrhage (see alsoFig. 23). One word more upon the interpretation of these facts. After having recognized during hfe the following symptoms ; motor hemiplegia with hemianesthesia, and at post-mortem the existence of a spot involving the lenticular ganglion, 6 82 DISEASES OF THE BRAIN. would you be led to conclude from the close relation of thesetwo orders of facts that the lent
Lectures on localization in diseases of the brain, delivered at the Faculté de médecine, Paris, 1875 . easily recognizethe precise locality, and the mode of formation and exten-sion of the various centres of central hemorrhage (see alsoFig. 23). One word more upon the interpretation of these facts. After having recognized during hfe the following symptoms ; motor hemiplegia with hemianesthesia, and at post-mortem the existence of a spot involving the lenticular ganglion, 6 82 DISEASES OF THE BRAIN. would you be led to conclude from the close relation of thesetwo orders of facts that the lenticular ganglion controlled bothsensation and voluntary motion of the opposite side ? Such conclusion would not be very legitimate, for, had thepatient survived, and the extravasation absorbed and left asa representative only a yellow linear cicatrix, the hemianaes-thesia, and even the motor paralysis, notwithstanding partialdestruction of the lenticular ganglion, would doubtless havedisappeared, leaving no traces. Successive ejAansionof primitive center. Brogressive erfension,of primitive LaJticnuclfii^^^Jvictpmfil cap aiilfiL Erf-TTaa Fig. 25.—Human brain. Section through the posterior portion of the internalcapsule, showing location, mode of formation and extension of hemorrhages at theposterior portion^of the internal capsule. (Hemianesthesia.) That which has been said respecting hemorrhages of thelenticular ganglion applies equally to hemorrhages which oc-cur in the posterior portion of the bodies of the thalami op-tici. These hemorrhages result from a rupture of the externalanterior optic, or lenticulo-optic artery. They are generallyindicated by a more or less marked hemiplegia, and nearlyalways also by a more or less complete hemianaesthesia, pro-vided the hemorrhage be sufficiently extensive. Should it CENTRAL ARTERIES. 83 be at once concluded (as so many authors have said and stillrepeat) that the thalami optici are the seat of common sensa-tion ? Incontes
Size: 1877px × 1331px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublishern, booksubjectbrain
