Perineurium
System
Nervous
SNOMED CT
362299001
Perineurium
Definition
A layer of thin, concentrically arranged cells with interspersed collagen that lies within the epineurium. The perineurium is a component of the blood–nerve barrier and is essential for protecting axons and their associated Schwann cells from ionic flux, toxins and infection.
The Perineurium is a part of the Nervous.