Microglia

A) Influence function of blood-brain barrier
B) Macrophages in CNS
C) Produce cerebrospinal fluid
D) Form myelin sheath around axons in CNS
E) Form myelin sheath around part of the axon in the PNS

Glial Cell

Non-neuronal cells in the nervous system that provide support, nutrition, and insulation between neurons.

Microglia

A type of glial cell located throughout the brain and spinal cord, acting as the primary form of active immune defense in the central nervous system.

CNS

Central Nervous System, which comprises the brain and spinal cord, responsible for processing information and controlling the majority of functions of the body and mind.