| Central gelatinous substance of spinal cord | |
|---|---|
| Substantia gelatinosa centralis is Rexed lamina X, labeled at center. | |
| Latin | substantia gelatinosa centralis medullae spinalis |
| Gray's | subject #185 753 |
| MeSH | Substantia+Gelatinosa |
Throughout the cervical and thoracic regions the central canal is situated in the anterior third of the medulla spinalis; in the lumbar enlargement it is near the middle, and in the conus medullaris it approaches the posterior surface. It is filled with cerebrospinal fluid, and lined by ciliated, columnar epithelium, outside of which is an encircling band of gelatinous substance, the substantia gelatinosa centralis (or central gelatinous substance of spinal cord). This gelatinous substance consists mainly of neuroglia, but contains a few nerve cells and fibers; it is traversed by processes from the deep ends of the columnar ciliated cells which line the central canal.
It should not be confused with the Substantia gelatinosa of Rolando, which is located more dorsally.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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