Neuroglia

: These line the brain's ventricles and help produce and circulate cerebrospinal fluid (CSF) using hair-like cilia. Peripheral Nervous System (PNS)

: Function similarly to oligodendrocytes by forming myelin sheaths around axons in the PNS, but also aid in nerve regeneration. neuroglia

: Surround neuron cell bodies in ganglia to provide physical support and regulate their chemical environment. : These line the brain's ventricles and help

: These cells produce myelin , a fatty sheath that wraps around axons to speed up electrical signals. neuroglia