pyramidal decussation

noun

Medical Definition of pyramidal decussation

: the crossing of the fibers of the corticospinal tracts from one side of the central nervous system to the other near the junction of the medulla and the spinal cord

called also decussation of the pyramids

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“Pyramidal decussation.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pyramidal%20decussation. Accessed 31 Oct. 2020.

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