perineurium
/ˌpɛrɪˈnjʊriəm/
noun
- A protective layer of connective tissue that surrounds a bundle of nerve fibers (a fascicle) inside a nerve.
- In a nerve injury, the perineurium may be torn, affecting nerve function.
- The surgeon carefully sutured the perineurium to repair the damaged nerve.
- The perineurium helps protect nerve fibers from damage.