pia mater

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Medieval Latin, meaning "tender mother".


pia mater ‎(plural pia maters)

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  1. (anatomy) The innermost of the meninges, the membranes that surround the brain and spinal cord.
    • 2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, in American Scientist, volume 101, number 3, page 200:
      Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems— […]. Such a slow-release device containing angiogenic factors could be placed on the pia mater covering the cerebral cortex and tested in persons with senile dementia in long term studies.