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epineurium

Each peripheral nerve is surrounded by a loose connective tissue sheath, the epineurium, composed mainly of collagen and fibroblasts. Its thickness varies along the course of a nerve: it forms a substantial covering over nerve trunks and then thins to an incomplete layer around the smaller branches near their terminations. Centrally the sheath is continuous with the dura, so the outermost connective tissue investment of a peripheral nerve is continuous with the meningeal covering of the central nervous system. Peripherally it usually ends near the termination of a nerve fibre, though it may continue as the capsule of Meissner corpuscles and of a few other encapsulated endings, in which case the sheath becomes part of a sensory receptor.

A loose connective tissue sheath surrounding each peripheral nerve. Composed mainly of colagen and fibroblasts, it forms a substantial covering over nerve trunks, then thins to an incomplete layer around smaller branches near their terminations. The epineurium is continuous centrally with the dura. Peripherally, it usually ends near the termination of a nerve fiber, but it may continue as the capsule of Meissner corpuscles and a few other encapsulated endings. Nolte, J. The Human Brain 3rd edition.

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Typ Nerve
Körpersystem Nervous
FMA ID 12234

Frequently Asked Questions

What is the epineurium?

A loose connective tissue sheath surrounding each peripheral nerve. Composed mainly of colagen and fibroblasts, it forms a substantial covering over nerve trunks, then thins to an incomplete layer around smaller branches near their terminations. The epineurium is continuous centrally with the dura.

What body system is the epineurium part of?

The epineurium is part of the Nervous.

References

  1. Foundational Model of Anatomy — FMA:12234 Reference anatomy ontology (University of Washington)
  2. UBERON — UBERON:0000124 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.