| 1. | Atrophy of Betz cells and corticospinal tracts constitute a second lesion.
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| 2. | The Betz cells are rare or absent in the adjacent cortex.
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| 3. | The Betz cells account for only a small percentage of the corticospinal tract.
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| 4. | The primary motor cortex contains cells with giant cell bodies known as " Betz cells ".
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| 5. | This region of cortex, characterized by the presence of Betz cells, was termed area 4 by Brodmann.
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| 6. | Even when the Betz cells are damaged, the cortex can still communicate to subcortical motor structures and control movement.
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| 7. | The location of the primary motor cortex is most obvious on histological examination due to the presence of the distinctive Betz cells.
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| 8. | Layer V of the primary motor cortex contains giant ( 70-100 �m ) pyramidal neurons which are the Betz cells.
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| 9. | The " Betz cells "'along with their long axons are referred to as the upper motor neuron ( UMN ).
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| 10. | The corticospinal tract also contains Betz cells ( the largest pyramidal cells ), which are not found in any other region of the body.
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