This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ... system. Through these narrow passages all sensory impressions rise into, and all voluntary motor impulses descend from, the hemispheric region. But besides the ascending and descending fibres, there is a third class which we call commissural fibres, serving the purpose of inter-communication among the cortical cells, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ... system. Through these narrow passages all sensory impressions rise into, and all voluntary motor impulses descend from, the hemispheric region. But besides the ascending and descending fibres, there is a third class which we call commissural fibres, serving the purpose of inter-communication among the cortical cells, and establishing relations also between the cortex and the hemispheric ganglions (nucleus caudatus and nucleus lentiformis). There are commissural fibres which interconnect the two hemispheres. The most important tract of these nerves forms a thick and broad body of a tough structure, called corpus callosum (German Balkeri). A smaller tract of this kind is the anterior commissure. Fibres of the anterior commissure inter connect both temporal lobes, while the corpus callosum appears to bring all other parts of the one hemisphere into relation with the corresponding parts of the other. The most important bundles that associate the different provinces of the same hemisphere are the fasciculus arcuatus (arching bundle), the fasciculus uncinatus (the hooked bundle), the fasciculus longitudinalis inferior (the lower longitudinal bundle) and the cingulum or girdle. According to experiments made by Charcot, a dissection of two thirds of the front part of the internal capsule produces paralysis, while a dissection of the posterior limb, the third and hindmost part of the capsula interna, is accompanied with anaesthesia. This proves that the anterior fibres of the capsule are mainly motor, and the posterior fibres sensory nerves. The rays of the tegmentum (Haubenstrahlung) rise from the tegmentum Haube, There are two connections with the Pons (Brilcke), CORONAL SECTION THROUGH THE BRAIN, FIBRB PROPRIA. Showing the connections between both He-(After Edin...
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