Card 3 / 13: Thalamic lesions are used to alleviate Parkinson's disease in cases that are refractory to L-dopa. What thalamic nucleus is the stereotaxic target for the neurosurgeons? This brain is from a patient who had a left electrolytic thalamotomy and a right chemopallidectomy 10 years before death that resulted in considerable improvement.
A.)
Centromedian.
B.)
Ventral posterior.
C.)
Lateral dorsal.
D.)
Ventral lateral.
E.)
Pulvinar.
Answer:
D.) Ventral lateral.
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Ventral lateral nucleus and ventral anterior nucleus project to premotor and supplementary motor regions which in turn project to precentral gyrus. This brain is from a patient who had a left electrolytic thalamotomy and a right chemopallidectomy 10 years before death that resulted in considerable improvement.
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