Definition of Pia mater
Pia mater: One of the meninges, the pia mater is the delicate innermost membrane enveloping the brain and spinal cord. It is known informally as the pia.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4892
Last Editorial Review: 4/27/2011 5:27:15 PM
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