Answer
Ependymal cells are a kind of cuboidal epithelioid neuroglia which line brain ventricles and capillaries of the choroid plexuses. They produce cerebrospinal fluid (CSF), a clear fluid that flows through the ventricles and canals of the brain, and bathes its external surfaces.
Work Step by Step
Choroid plexuses are networks/masses of capillaries on the walls and floors of brain ventricles. The CSF is a filtrate of blood in the capillaries of the choroid plexuses.
