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Arcuate nucleus (medulla)

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Arcuate nucleus (medulla)
Transverse section of medulla oblongata below the middle of the olive. ("Nucleus arcuatus" visible near bottom right.)
Dissection of brain-stem. Lateral view. (Labels for "External arcuate fibers" and "Dorsal external arcuate fibers" visible at lower right.)
Details
Identifiers
Latinnucleus arcuatus medullae oblongatae
NeuroNames775
NeuroLex IDbirnlex_2635
TA98A14.1.04.256
TA26016
FMA72609
Anatomical terms of neuroanatomy

In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids. These nuclei are the extension of the pontine nuclei.[1]

They receive afferents from the corticospinal tract.[citation needed]

They in turn project efferents into the cerebellum through the inferior cerebellar peduncle as:[1]

Function

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Arcuate nuclei are capable of chemosensitivity and have a proven role in the respiratory center controlling the breathing rate.[2]

Additional images

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References

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  1. ^ a b Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York: Elsevier. p. 445.e1. ISBN 978-0-7020-7707-4. OCLC 1201341621.
  2. ^ Paradiso, B; Ferrero, S; Thiene, G; Lavezzi, AM (November 2018). "Variability of the medullary arcuate nucleus in humans". Brain and Behavior. 8 (11): e01133. doi:10.1002/brb3.1133. hdl:11577/3281424. PMID 30329220.