endoneurium

(noun)

$$A layer of connective tissue that surrounds axons.

Related Terms

  • perineurium
  • glycocalyx
  • fascicles
  • epineurium
  • endoneurial fluid
  • fascicle

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.
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