Microglia, What are they and where do they come from?
Resident macrophages of the brain/spinal cord, that help with immune defense of the CNS. Differentiated from bone marrow, hematopoietic stem cells. use phagocytic and cytotoxic to destroy foreign material. Act as antigen presenting cells. (scavenging, phagocytosis, cytotoxicity, antigen presentation, promotion of repair, extracellular signaling)