A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . characteristic. Stewart and Holmes, in apartial study of the cerebellar gait (Brain, 1904)show two characteristic trends of disturbance:first, staggering lateropulsions toward the affectedside, backward or forward, accordmg to the locationof the lesions in vermis or dentate nucleus. Thepatient feels as if he were pushed to one side, and inattempting restitution overcorrects, thus producingthe swaying movement. Second, the entire orienta-tion in space is influenced,
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . characteristic. Stewart and Holmes, in apartial study of the cerebellar gait (Brain, 1904)show two characteristic trends of disturbance:first, staggering lateropulsions toward the affectedside, backward or forward, accordmg to the locationof the lesions in vermis or dentate nucleus. Thepatient feels as if he were pushed to one side, and inattempting restitution overcorrects, thus producingthe swaying movement. Second, the entire orienta-tion in space is influenced, the patient bending in thedirection of the affected side. The characteristicmenagerie-like movements result from consciousattempts at correction (frontocerebellar paths),producing the larger zigzags in the general course ofprogression. Forward and backward movementshave their special localizing signs. (Figs. 1283, 1284,1285, and 1286. 7^ tJialamoCoriicalis (^tuthaliVTtu. Nucleus ruber. Sup. ceitbellarpedwtele. ?\ -pentihus. Nncleus ,dentatus - cerebellaris Central tegmentaltract Niddle - cerebellarpedzmtle, ?Jnferior olive Fig. 1282.—Illustrating the Afferent and Efferent Connectionsof the Cerebellum with the Forebrain. (Holmes.) Cerebellar ataxias may be the result of involvementof the spinocerebellar paths (Flechsig, Gowers, ves-tibular system), as in the Freidreich-Marie (see Fig. 1281); they may arise from involvementof the superior cerebellar peduncles—from bulbar andpontine involvements of these paths, and from im-plication of the cerebellorubral, cerebellothalamic,and frontocerebellar paths. (See Fig. 1282.) Typicalcerebellar ataxias, with drunken gait (Burns, Oppen-heim), are seen in some cases of frontal tumor. Theaccompanying localizing disturbances, and dissocia-tive (diaschitic) signs of the disturbed cerebro- REFERENCE HANDBOOK OF THE MEDICAL SCIENCES Cerebelluiii, UlsurderN of
Size: 1243px × 2010px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1910, bookyear1913
