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Recovery and Repair in the

Nerves and Spinal Cord

Chapter 10

Nerve Structure
A nerve  is usually made up from a variety of fascicles . Each fascicle is encased by perineurium.  Inside the fascicle are a group of axons bathed in endoneurial fluid. Each axon has an insulating lining of myelin – a fatty material inside the Schwann cells. Between the fascicles is a fatty material called the interfascicular  epineurium.  The nerve is then wrapped in the main epineurium.  Even if the sensitive living axons are damaged, the conduit made up of epineurium and perineurium will often survive and provide a pathway for regrowing nerves.