posterior median septum

noun

Medical Definition of posterior median septum

: a sheet of glial tissue in the midsagittal plane of the spinal cord that extends from the posterior median sulcus toward the gray commissure and that partitions the posterior part of the spinal cord into right and left halves

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“Posterior median septum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/posterior%20median%20septum. Accessed 19 Apr. 2021.

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