室管膜; 髓腔膜
Ependyma \Ep*en"dy*ma\, n. [NL., fr. Gr. ? an upper garment; 'epi` upon + ? a garment; ? in + ? to put on.] (Anat.) The epithelial lining of the ventricles of the brain and the canal of the spinal cord; endyma; ependymis.
ependyma n : thin epithelial membrane lining the ventricles of the brain and the spinal cord canal