Results: Ependyma was lined in the inner surface of cerebral ventricles, aqueduct and spinal central canal, simple-flattened, cuboidal or pseudostra tified columnar according to its position.

• 结果:室管膜上皮衬于脑室、中脑水管和脊髓中央管的内表面,不同部位可见单层扁平、立方或假复层柱状各型上皮。细胞游离缘均具有纤毛、微绒毛及分泌泡,但其形态数量因部位而不同。