Microglia are located throughout the CNS. They are the main form of immune response in the CNS. Their role encompasses the detection and removal of foreign bodies, neuron repair, and debris removal.

Contents 1 States 1.1 Resting (ramified) microglia 1.2 Activated (reactive) microglia 1.2.1 Hypertrophied 1.2.2 Bushy 1.3 Phagocytic microglia

States

Resting (ramified) microglia

Generally characterized by long, fine processes spread out in all directions.

Activated (reactive) microglia

Hypertrophied

Bushy

Phagocytic microglia

Microglia are able to engulf foreign bodies and cellular debris.