Nucleus raphe magnus
Cluster of nuclei in the brain stem / From Wikipedia, the free encyclopedia
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The nucleus raphe magnus (termed the nucleus raphes magnus by Terminologia Anatomica[1] and some publications[2]) is one of the seven raphe nuclei. It is situated in the pons in the brainstem,[3]: 306 just rostral to the nucleus raphe obscurus.[citation needed]
Nucleus raphe magnus | |
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Details | |
Identifiers | |
Latin | nucleus raphe magnus |
MeSH | D065846 |
NeuroNames | 739 |
NeuroLex ID | birnlex_1363 |
TA98 | A14.1.04.321 |
TA2 | 6038 |
FMA | 72584 |
Anatomical terms of neuroanatomy |
The NRM receives afferent stimuli from the enkephalinergic neurons of the periaqueductal gray; the serotonergic neurons of the NRM then bilaterally project efferents to the enkephalinergic and dynorphin-containing interneurons of the substantia gelatinosa of the posterior grey column of the spinal cord. This neural path thus mediates pain perception through pre-synaptic inhibition of first-order afferent (sensory) neurons.[3]: 225