. Alienist and neurologist. . rain stem. The artery of the fossae of Sylviussupplie; the center of the brain through the arteria corpus callosiand the lenticular artery. The arteries given off at right angles from the fossae Silvaeare end arteries, that is, the brain tissue surrounding them hasno possibility of a collateral blood supply. This explains whydisease of the basilar arteries presents the same clinical symptoms,namely, hemiplegia on one hand and pontine affection on theother hand. It is a question depending upon the degree ofnarrowing of the lumina of these vessels. Naturally we expe
. Alienist and neurologist. . rain stem. The artery of the fossae of Sylviussupplie; the center of the brain through the arteria corpus callosiand the lenticular artery. The arteries given off at right angles from the fossae Silvaeare end arteries, that is, the brain tissue surrounding them hasno possibility of a collateral blood supply. This explains whydisease of the basilar arteries presents the same clinical symptoms,namely, hemiplegia on one hand and pontine affection on theother hand. It is a question depending upon the degree ofnarrowing of the lumina of these vessels. Naturally we expect to find variations ofblood pressure with disturbances of nutrition in area supplied, which produce dizziness,transient paralysis and slight clonic contractions without clouding of consciousness, sooften observed. To what is sclerosis of the cerebral arteries due? Is it heredity? !. Williams {Journal of Medical Diseases, September, 1917) reports thatTHIRTY-EIGHT CASES OUT OF 100 HAD 56 ARTERIOSCLEROTICRELATIVES AS FOLLOV/S:. Paternal. Fathers 10 Grandparents 7 Collateral 6 Total 23 Brothers and Sisters 5 Maternal. Mothers 7 Grandparents H Collateral f 0 Total 28 Children 0 2. Is alcohol a contributing factor? All cases of chronic alcoholism show moreor less pathological changes in the brain mostly noted as the so-called wet brain orserous pachymeningitis. 3. Sex.—Males are more affected than females. This is not due to any specialpredisposition but to the fact that greater exposure on account of occupation, habits andconditions of life have a tendency to affect blood pressure injuriously. Day laborers,blacksmiths and miners are apt to develop sclerosis at a much earlier age than menengaged in less strenuous tasks. Strain of the vascular coats by severe and oft-repeatedmuscular effort, cannot be ignored in the production of sclerosis. 4. Neurasthenic individuals are prone to arterial degeneration as a result ofalterations in blood pressure associated with unstable and excita
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpsychology, bookyear1
