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| Description: Regeneration & Repair of Nervous Tissue Although the nervous system exhibits plasticity, neurons have a limited ability to regenerate themselves Plasticity – the capability to change based on experience Regenerate – the capability to replicate or repair Neurogenesis in the CNS In the CNS, there is little or no repair due to: Inhibitory influences from neuroglia, particularly oligodendrocytes Absence of growth-stimulating cues that were present during fetal development Rapid formation of scar tissue In the PNS repair is possible if the cell body is intact, Schwann cells are functional, and scar tissue formation does not occur too rapidly Steps involved in the repair process are: Chromatolysis Wallerian degeneration Formation of a regeneration tube Picture Stats: Views: 183 Filesize: 805.48kB Height: 1000 Width: 825 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=40913 |