| Spinal
Tracts |
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| Corticospinal: |
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| Anterior, Lateral |
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| Lateral |
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| corticospinal
fibers |
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| crossover in
the |
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| pyramids of |
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| medulla –
control |
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| muscles on |
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| opposite side |
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| Extrapyarmidal |
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| tracts |
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