Which neuroglial cells produco CSF in some regions of the brain? \( \begin{array}{l}\text { AJ microglia } \\ \text { B) Schwann cells ependymal cells } \\ \text { D) oligodendrocytes } \\ \text { E) astrocytes }\end{array} \)

Ependymal cells are the neuroglial cells responsible for producing cerebrospinal fluid (CSF) in certain regions of the brain, primarily in the ventricles. These specialized cells line the ventricles and the central canal of the spinal cord, creating a barrier that also helps circulate the CSF throughout the brain and spinal cord, ensuring that nutrients and waste are efficiently managed. Interestingly, CSF plays a significant role in cushioning the brain and maintaining intracranial pressure. It’s not just a protective fluid; it also facilitates communication between different parts of the brain and removes metabolic waste. So, next time you think about the brain's "bouncer," remember that ependymal cells are working tirelessly behind the scenes to keep everything flowing smoothly!