an agile membrane which covers the exterior of the brain and spinal cord- it is the innermost layer of the three meninges.
PIA MATER: "The PIA mater was completely absent and likely to blame for the damage to the spinal cord."
Cite this page: N., Pam M.S., "PIA MATER," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/pia-mater/ (accessed May 11, 2021).
