| Substantia gelatinosa of Rolando | |
|---|---|
 Substantia gelatinosa of Rolando is Rexed lamina II, labeled at upper left. | |
| Details | |
| Identifiers | |
| Latin | substantia gelatinosa cornu posterioris medullae spinalis |
| MeSH | D013376 |
| TA98 | A14.1.02.119 |
| TA2 | 6067 |
| FMA | 74019 |
| Anatomical terminology | |
The apex of the posterior grey column, one of the three grey columns of the spinal cord, is capped by a V-shaped or crescentic mass of translucent, gelatinous neuroglia, termed the substantia gelatinosa of Rolando (or SGR) (or gelatinous substance of posterior horn of spinal cord), which contains both neuroglia cells, and small neurons. The gelatinous appearance is due to an abundance of neuropil with a very low concentration of myelinated fibers.[1][2] It extends the entire length of the spinal cord and into the medulla oblongata where it becomes the spinal trigeminal nucleus.
It is named after Luigi Rolando.
It corresponds to Rexed lamina II.[3][4]
- ^ Sheikh, Nafiz K.; Dua, Anterpreet (2024). "Neuroanatomy, Substantia Gelatinosa". StatPearls. StatPearls Publishing. Retrieved 20 July 2024.
- ^ Cite error: The named reference
:0was invoked but never defined (see the help page). - ^ Baba H, Shimoji K, Yoshimura M (February 2000). "Norepinephrine facilitates inhibitory transmission in substantia gelatinosa of adult rat spinal cord (part 1): effects on axon terminals of GABAergic and glycinergic neurons". Anesthesiology. 92 (2): 473–84. doi:10.1097/00000542-200002000-00030. PMID 10691235. S2CID 21745273.
- ^ Petras, J. M. (1968). "The substantia gelatinosa of rolando". Experientia. 24 (10): 1045–7. doi:10.1007/BF02138738. PMID 4975029. S2CID 9435558.