Medical Definition of corticospinal tract
: any of four columns of motor fibers of which two run on each side of the spinal cord and which are continuations of the pyramids of the medulla oblongata : pyramidal tract:
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“Corticospinal tract.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/corticospinal%20tract. Accessed 26 Feb. 2021.
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