PIA-ARACHNOID

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noun. the inner two coverings of the spinal cord and brain.

PIA-ARACHNOID: "The Pia-arachnoid was present in all but three autopsies."
Cite this page: N., Sam M.S., "PIA-ARACHNOID," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pia-arachnoid/ (accessed June 30, 2022).

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