Neuroglia responsible for phagocytosis is -
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.
Fibrous Astrocytes
Protoplasmic Astrocytes
Oligodendrocytes
Microglia