The innermost delicate fibrous meningeal coverings of the CNS. It is closely adherent to the brain tissue and is composed of one to several layers of flattened, modified fibroblasts and the ECM (collagen and elastic fibers, etc.) they produce. [ http://www.ncbi.nlm.nih.gov/pubmed/30993182 ]
Synonyms: pia matter
This is just here as a test because I lose it