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MRI in amyotrophic lateral sclerosis: hyperintensity of the corticospinal tract

S Kriaa1, M Zbidi, C Hafsa

  • 1Department of Radiology, Fattouma Bourguiba Hospital, Monastir, Tunisia.

Neurology & Clinical Neurophysiology : NCN
|December 2, 2006
PubMed

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Direct Motor Pathways

The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and the...