Compendium of regional diagnosis in affectations of the brain and spinal cord / Translated by F.S. Arnold.

  • Bing, Robert.
Date:
1913
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Licence: In copyright

Credit: Compendium of regional diagnosis in affectations of the brain and spinal cord / Translated by F.S. Arnold. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    teristic pain is caused by upward pressure on the apex of the mastoid. In both cases the pain is felt on the side of the lesion. 3. The condition of the fundus, known as choked disc comes on very rapidly and in a very marked form, and generally on both sides. Not infrequently it leads rapidly to blindness. 4. If lumbar puncture be resorted to, pressure falls rapidly, and the flow of cerebro-spinal fluid very soon ceases. Apparently the tumour suddenly presses the me- dulla into the occipital foramen, and so blocks the com- munication between the intracranial and the spinal fluid. This involves such great danger for the patient (cases of sudden death during the procedure have been recorded) that, if a neoplasm is thought to be situated in or close to the cerebellum, the use of this diagnostic method is urgently contra-indicated. C. Lesions of the Cerebrum, Basal Ganglia, and Hypophysis. CHAPTER I. ANATOMICO-PHYSIOLOGICAL INTRODUCTION. The organ for conscious psychic phenomena is the cerebral cortex. It does not perform its tasks diffusely as a physio- logical unit, but to different parts of its area are assigned different functions. Both the efferent, centrifugal tracts, which carry impulses from it, and the afferent, centripetal, which convey stimuli to it, find their origin and termina- tion respectively, in topographically defined areas of the surface of the hemispheres—the so-called cortical areas. While Figs. 57 and 58 give the anatomical divisions of the cortex cerebri, the fissures and convolutions; the physio- logical divisions, the above-named cortical areas, are repre- sented in Figs. 59 and 60. The cortical areas may be divided into—• 1. Motor areas. From these arise the cortico-nuclear tracts which innervate our whole voluntary musculature.