A system of practical medicine . Diagram showing secondary degeneration through the cms and anterior pyramid of one side (adapted from Edinger). fibres which pass upward to the sensory areas of the cortex ; lesions ofthis tract give rise to anaesthesia of the opposite side of the body. Fig. Diagram showing the tracts of degeneration in tlio cervical cord secondary to lesion of the inter-nal capsule (see textj. The various motor fibres of the cortex descend in this narrow tract,the internal capsule, pass between the caudate nucleus and the optic CEREBRAL HEMORRHAGE. 361 thalamus on the one
A system of practical medicine . Diagram showing secondary degeneration through the cms and anterior pyramid of one side (adapted from Edinger). fibres which pass upward to the sensory areas of the cortex ; lesions ofthis tract give rise to anaesthesia of the opposite side of the body. Fig. Diagram showing the tracts of degeneration in tlio cervical cord secondary to lesion of the inter-nal capsule (see textj. The various motor fibres of the cortex descend in this narrow tract,the internal capsule, pass between the caudate nucleus and the optic CEREBRAL HEMORRHAGE. 361 thalamus on the one hand and the lenticular nucleus on the other, thendownward through the pes of the crus, the pons, the anterior pyramidsof the medulla, where they decussate with the fil)res of the opposite side,and then pass downward through the cord as the so-called pyramidal orlateral tracts. In the cord these fibres come into relation, though notinto continuity, with the large multipolar cells of the anterior cornua ofthe gray matter. These multipolar cells in turn give off the motorfibres passing to the muscles. Our knowledge of the course of themotor tract is almost exclusively the result of clinical and pathologicalobservation, inasmuch as a lesion of the tract at any point causes de-generation of
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Keywords: ., bookcentury1800, bookdecade1890, bookpublish, booksubjectmedicine
