Dorsal nucleus of vagus nerve

Dorsal nucleus of vagus nerve
Nuclei of origin of cranial motor nerves schematically represented; lateral view. ("X" visible at bottom center.)
#9 is vagus nerve and nucleus
Details
Identifiers
Latin	nucleus posterior nervi vagi, nucleus dorsalis nervi vagi
NeuroNames	755
NeuroLex ID	birnlex_2642
TA98	A14.1.04.229
TA2	6013
FMA	54585
Anatomical terms of neuroanatomy [edit on Wikidata]

The dorsal nucleus of vagus nerve (or posterior nucleus of vagus nerve or dorsal vagal nucleus or nucleus dorsalis nervi vagi or nucleus posterior nervi vagi)^[1] is a cranial nerve nucleus of the vagus nerve (CN X) situated in the medulla oblongata of the brainstem ventral to the floor of the fourth ventricle. It contains nerve cell bodies of parasympathetic neurons of CN X that provide parasympathetic innervation to the gastrointestinal tract and lungs as well as other thoracic and abdominal organs. These functions include, among others, bronchoconstriction and gland secretion.^{[2][verification needed]}

Cell bodies of pre-ganglionic parasympathetic neurons of CN X that innervate the heart meanwhile reside in the nucleus ambiguus, and additional cell bodies of the nucleus ambiguus give rise to the branchial efferent motor fibers of the vagus nerve (CN X) terminating in the laryngeal, and pharyngeal muscles, and musculus uvulae muscle.

Additional images

• 
  Section of the medulla oblongata at about the middle of the olive.
• 
  The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue.
• 
  Dorsal motor nucleus of Vagus with Lewy body pathology

See also

• Vagovagal reflex, gastrointestinal tract reflex circuits where afferent and efferent fibers of the vagus nerve.
• Nucleus ambiguus

References

External links

• MedEd at Loyola GrossAnatomy/h_n/cn/cn1/cn10.htm
• Overview at mcgill.ca
• NIF Search - Dorsal nucleus of vagus nerve^{[permanent dead link]} via the Neuroscience Information Framework

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