Card 9 / 13: The basal ganglia exert their effects on motor behavior through the:
A.)
Rubrospinal tract.
B.)
Vestibulospinal tract.
C.)
Reticulospinal tract.
D.)
Corticospinal tract.
E.)
All of the above.
Answer:
D.) Corticospinal tract.
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Both the basal ganglia and cerebellum exert their influence on the spinal cord through the corticospinal tract. Connections through VL of the thalamus to premotor, supplementary motor and precentral gyrus are important modifiers of corticospinal tract activity. Click on the numbers to see a 3-D animated sequence of the corticospinal tract 43165 to 43394*.
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