SpiderWeb

Level 3
Microglia are a type of neuroglia (glial cell) located throughout the brain and spinal cord. Microglia account for 10–15% of all cells found within the brain. As the resident macrophage cells, they act as the first and main form of active immune defense in the central nervous system (CNS).
10-15% of the brain is just antivirus/system repair on standby think about that.
 
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