With the third pick in the 2009 NBA Draft, the Oklahoma City Thunder select James Harden.
The nervous system is divided into the peripheral nervous system and the central nervous system. Fortunately, damaged peripheral nerves can regenerate after injury. However, the optic nerve and the spinal cord are in the central nervous system, and unfortunately cannot regenerate after injury.This is thought to be a result of inhibitory factors that are produced by cells that normally support the nerve fibers.n goldfish, the optic nerve can regenerate after injury. Molecular factors involved in structural support, gene regulation, and nerve fiber growth are produced in the goldfish optic nerve after injury.
In the case of optic neuritis, the optic nerve becomes swollen and its function is impaired. Inflammation and destruction of the protective myelin sheath that coats and insulates the optic nerve, plus direct damage to the nerve axons results in loss of vision.