Perineurium - meaning and definition. What is Perineurium
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What (who) is Perineurium - definition

SHEATH AROUND NERVE BUNDLES
Perineurial cells

Perineurium         
·noun The connective tissue sheath which surrounds a bundle of nerve fibers. ·see Epineurium, and Neurilemma.
perineurium         
[?p?r?'nj??r??m]
¦ noun Anatomy the sheath of connective tissue surrounding a bundle of nerve fibres within a nerve.
Derivatives
perineurial adjective
Origin
C19: mod. L., from Gk peri- 'around' + neuron 'sinew'.
Perineurium         
The perineurium is a protective sheath that surrounds a nerve fascicle. This bundles together axons targeting the same anatomical location.

Wikipedia

Perineurium

The perineurium is a protective sheath that surrounds a nerve fascicle. This bundles together axons targeting the same anatomical location. The perineurium is composed from fibroblasts.

In the peripheral nervous system, the myelin sheath of each axon in a nerve is wrapped in a delicate protective sheath known as the endoneurium. Fascicles, bundles of neurons, are surrounded by the perineurium. Several fascicles may be in turn bundled together with a blood supply and fatty tissue within yet another sheath, the epineurium. This grouping structure is analogous to the muscular organization system of epimysium, perimysium and endomysium.