perineurium

Examples of perineurium in the following topics:

• Structure of a Nerve

  • Each fascicle is wrapped in a layer of connective tissue called the perineurium.
  • An illustration of a cross-section of a nerve highlighting the epineurium and perineurium.
  • Individual axons can also be seen as tiny circles within each perineurium.

• Axon Bundles

  • Underlying this layer of flat cells, the perineurium, forms a complete sleeve around a bundle of axons called fascicles.

• 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.