Neurolemma
From Wikipedia, the free encyclopedia
| Neurolemma | |
|---|---|
 |
|
| Diagram of longitudinal sections of medullated nerve fibers. | |
 |
|
| Transverse sections of medullated nerve fibers. | |
| Gray's | subject #183 727 |
| MeSH | A08.561.600 |
Neurolemma (also neurilemma and sheath of Schwann) is the outermost layer of nerve fibers in the peripheral nervous system. It is a nucleated cytoplasmic layer of Schwann cells that surrounds the myelin sheath of axons.
Unlike the axon and the myelin sheath, the neurolemma does not degenerate after a nerve has been cut or crushed; the hollow tube formed by the neurolemma is instrumental in regenerating the nerve fiber. It is important to note that in CNS, axons are myelinated by oligodendrocytes, thus lack neurolemma.
[edit] External links
 |
This neuroanatomy article is a stub. You can help Wikipedia by expanding it. |
