part_of part of part of develops from contributes to morphology of composed primarily of ependymal cell epithelium nervous system neural tube ventricular layer ependyma ependyma of neuraxis UBERON:0004670 FMA:242791 ependymal epithelium NCIT:C13078 The thin epithelium-like membrane composed of ependymal cells that lines the ventricular system of the brain and the spinal cord. neuronames:1856 lamina epithelialis MESH:D004805 BTO:0000401 Wikipedia:Ependyma GAID:608 SCTID:12766003 ventricle of nervous system ciliated epithelium ecto-epithelium