Neuroglia responsible for phagocytosis is -: (A) Fibrous Astrocytes, (B) Protoplasmic Astrocytes, (C) Oligodendrocytes, (D) Microglia
Answer is D. Microglial cells are the major phagocytic cells in C.N.S. At the time of injury microglial cells modify to form macrophages called Gitter cells.
Oligodendrocytes  → They secrete myelin sheath in CNS
Schwann cells    →  They secrete myelin sheath in the peripheral nervous system.