substantia gelatinosa

(redirected from Gelatinosa)
Also found in: Medical.

sub·stan·ti·a ge·lat·i·no·sa

 (səb-stăn′shē-ə jə-lăt′n-ō′sə)
n.
A narrow, dense, vertical band of gray matter forming the dorsal part of the posterior column of the spinal cord whose gelatinous appearance is due to its very low content of myelinated nerve fibers. It functions in the integration of sensory stimuli that give rise to the sensations of heat and pain.

[New Latin substantia gelatinōsa : Latin substantia, substance + New Latin gelatinōsus, gelatinous.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The greatest concentrations of kappa-receptors in nociceptive regions are in lamina I and II of the spinal cord dorsal horn as well as in the spinal nucleus of the trigeminal nerve (substantia gelatinosa).
Norepinephrine facilitates inhibitory transmission in substantia gelatinosa of adult rat spinal cord (part 1): effects on axon terminals of GABAergic and glycinergic neurons.
Noxious heating of the skin releases immunoreactive substancePin the substantia gelatinosa of the cat: A study with antibody microprobes.
Lamina II of the dorsal horn (substantia gelatinosa) is a major target of nociceptive primary afferents.
Baba, "Action of dexmedetomidine on the substantia gelatinosa neurons of the rat spinal cord," European Journal of Neuroscience, vol.
Fentanyl showed its effect in substantia gelatinosa that is in dorsal horn of spinal cord blockade is done with inhibition of neuronal excitation in both pre-synaptic and post-synaptic levels.