Median raphe nucleus

The median raphe nucleus (MRN or MnR), also known as the nucleus raphes medianus (NRM) or superior central nucleus, is a brain region composed of polygonal, fusiform, and piriform neurons, which exists rostral to the nucleus raphes pontis. The MRN is located between the posterior end of the superior cerebellar peduncles and the V. Afferents of the motor nucleus. It is one of two nuclei, the other being the dorsal raphe nucleus (DnR), in the midbrain-pons.

Median raphe nucleus
Details
Identifiers
Latinnucleus raphes medianus, nucleus centralis superior
NeuroNames562
NeuroLex IDbirnlex_889
TA98A14.1.05.603
TA25956
FMA72465
Anatomical terms of neuroanatomy

The MRN projects extensively to the hippocampus, which is known to be essential for the formation of long-term memory. One recent study found that this raphe–hippocampus pathway plays a critical role in regulation of hippocampal activity and likely associated memory consolidation processes. It has also been found to play a role in anxiety and depression, as one of the few parts of the brain that creates tryptophan hydroxylase.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.