pia mater

Stedman's Medical Dictionary: A Practical Medical Dictionary · 1920 · p. 26

(pe'ah-mah'ter) [L. tender, aifectiona' mother.] A delicate fibrous membrane close! enveloping the brain and spinal cord. Thi covering the brain (p. m. enceph'ali [BNA follows exactly the outer markings of the cer brum and also sends folds, telae chorioidese, in1 the ventricles; it invests the cerebellum but n( so intimately as it does the cerebrum, n(