endoneurium

Examples of endoneurium in the following topics:

• Axon Bundles

  • Surrounding each axon is the endoneurium.
  • The endoneurium consists of an inner sleeve of material called the glycocalyx and an outer delicate meshwork of collagen fibres.
  • Within the endoneurium, the individual nerve axonsare surrounded by a protein liquid called endoneurial fluid.
  • The endoneurium has properties analogous to the blood–brain barrier, in that it prevents certain molecules from crossing from the blood into the endoneurial fluid.

• Structure of a Nerve

  • Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium.
  • The endoneurium consists of an inner sleeve of material called the glycocalyx and a mesh of collagen.
  • Within the endoneurium, individual nerve fibers are surrounded by a liquid called the endoneurial fluid.
  • The endoneurium has properties analogous to the blood–brain barrier.

• Optic (II) Nerve

  • The optic nerve is ensheathed in all three meningeal layers (dura, arachnoid, and pia mater) rather than the epineurium, perineurium, and endoneurium found in the peripheral nerves.

• Regeneration of Nerve Fibers

  • The distal segment, however, experiences Wallerian degeneration within hours of the injury; the axons and myelin degenerate, but the endoneurium remains.

• Capacity of Different Tissues for Repair

  • The distal segment, however, experiences Wallerian degeneration within hours of the injury; the axons and myelin degenerate, but the endoneurium remains.