Medial septal nucleus

The medial septal nucleus (MS) is one of the septal nuclei. Neurons in this nucleus give rise to the bulk of efferents from the septal nuclei. A major projection from the medial septal nucleus terminates in the hippocampal formation.[1]

Medial septal nucleus
Medial septal nucleus of the mouse brain
Details
Identifiers
Latinnucleus septalis medialis
NeuroNames262
NeuroLex IDbirnlex_1668
TAA14.1.09.269
A14.1.09.446
FMA61879
Anatomical terms of neuroanatomy

It plays a role in the generation of theta waves in the hippocampus.[2] Specifically, the GABAergic cells of the medial septum that act as theta pacemakers target dentate gyrus, CA3, and CA1 interneurons. Pacemaking MS interneurons express hyperpolarization-activated cyclic nucleotide-gated (HCN) channels which are likely to promote their pacemaker properties.[3]

References

  1. Brodal, A (1981). Neurological Anatomy. New York, N.Y.: Oxford University Press. Retrieved 18 Jun 2011.
  2. O'Keefe, John; Andersen, Per; Morris, Richard; David Amaral; Tim Bliss (2007). The hippocampus book. Oxford [Oxfordshire]: Oxford University Press. p. 480. ISBN 978-0-19-510027-3.
  3. Colgin, Laura Lee (April 2016). "Rhythms of the hippocampal network". Nature Reviews. Neuroscience. 17 (4): 239–249. doi:10.1038/nrn.2016.21. ISSN 1471-003X. PMC 4890574. PMID 26961163.


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