Nerve regrow
Phagocytosis can help nerve repair, Faizan, but it does not directly regrow neurons. Its main role is to remove damaged cellular material so that the surviving nervous system has a better environment for repair. In the brain and spinal cord, immune cells called microglia perform much of this cleanup. In peripheral nerves, Schwann cells and macrophages also help remove damaged nerve material. Research reviews describe debris clearance as an important part of the regeneration process. ### How the process works  1\. Nerve injury A damaged axon and its myelin sheath can break down, leaving debris that interferes with repair. ![Frontiers | Janus-faced microglia: beneficial and detrimental co...