Not involved in damage to cerebellum: March 2010

Ans. C: Asthenia Signs of Cerebellar Disorders Ataxia, Reeling, wide-based gait- decomposition of movements, Inability to correctly sequence fine, coordinated acts Dysahria-Inability to aiculate words correctly, with slurring and inappropriate phrasing Dysdiadochokinesia-Inability to perform rapid alternating movements Dysmetria-Inability to control range of movement Hypotonia-Decreased muscle tone Nystagmus-Involuntary, rapid oscillation of the eyeballs in a horizontal, veical, or rotary direction, with the fast component maximal toward the side of the cerebellar lesion Scanning speech-Slow enunciation with a tendency to hesitate at the beginning of a word or syllable Tremor-Rhythmic, alternating, oscillatory movement of a limb as it approaches a target (intention tremor) or of proximal musculature when fixed posture or weight bearing is attempted (postural tremor) Asthenia: (Weakness/Lack of energy and strength/Loss of strength). It is a prominent pa of myasthenia gravis