thecal sac

noun

: the membranous sac of dura mater covering the spinal cord and cauda equina and containing cerebrospinal fluid

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thecal
thecal sac
theca lutein cell
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Cite this Entry

“Thecal sac.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thecal%20sac. Accessed 7 May. 2025.

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