<prompt> Neuroglia responsible for phagocytosis is -Fibrous AstrocytesProtoplasmic AstrocytesOligodendrocytesMicroglia  <response>: 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 CNSSchwann cells They secrete myelin sheath in the peripheral nervous system. 