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6 Cards in this Set

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  • Back
Ataxic dysarthria
caused by Cerebellar lesions
hyperkinetic dysarthria
caused by Chorea and myoclonus
hypokinetic dysarthria
caused by the rigid types of extrapyramidal disease( abnormalities of the basal ganglia or certain brainstem or thalamic nuclei;
Sx: motor deficits,
loss of postural reflexes,
bradykinesia, tremor, rigidity
and various involuntary movements)
Spastic dysarthria
= Rigid dysarthria
caused by lesions along the Corticobulbar tracts
Chorea
Irregular, spasmodic, involuntary movements of the limbs or facial muscles, often accompanied by hypotonia.
The location of the responsible cerebral lesion is not known.
myoclonus
One or a series of shock-like contractions of a group of muscles, of variable regularity, synchrony, and symmetry
Generally due to a central nervous system lesion