Compilation of free information about human parts, their function, assembly, repair, and maintenance
Neurolemma
| Neurolemma | |
|---|---|
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| Diagram of longitudinal sections of medullated nerve fibers. | |
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| 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.
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The content of this section is licensed under the GNU Free Documentation License (local copy). It uses material from the Wikipedia article "Neurolemma" modified December 22, 2007 with previous authors listed in its history.
