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Contents

   



(Top)
 


1 Composition  





2 Function  





3 Synonyms  





4 References  














Solitary tract






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From Wikipedia, the free encyclopedia
 


Solitary tract
Transverse section of medulla oblongata below the middle of the olive. (Fasciculus solitarius labeled at upper right.)
The formatio reticularis of the medulla oblongata, shown by a transverse section passing through the middle of the olive. (#15 is fasciculus solitarius)
Details
Identifiers
Latintractus solitarius medullae oblongatae
NeuroNames785
NeuroLexIDbirnlex_1483
TA98A14.1.04.120
TA26048
FMA72618
Anatomical terms of neuroanatomy

[edit on Wikidata]

The solitary tract (tractus solitariusorfasciculus solitarius) is a compact fiber bundle that extends longitudinally through the posterolateral region of the medulla oblongata. The solitary tract is surrounded by the solitary nucleus, and descends to the upper cervical segments of the spinal cord. It was first named by Theodor Meynert in 1872.

Composition[edit]

The solitary tract is made up of primary sensory fibers and descending fibers of the vagus, glossopharyngeal, and facial nerves.

Function[edit]

The solitary tract conveys afferent information from stretch receptors and chemoreceptors in the walls of the cardiovascular, respiratory, and intestinal tracts. Afferent fibers from cranial nerves 7, 9 and 10 convey taste (SVA) in its rostral portion, and general visceral sense (general visceral afferent fibers, GVA) in its caudal part. Taste buds in the mucosa of the tongue can also generate impulses in the rostral regions of the solitary tract. The efferent fibers are distributed to the solitary tract nucleus.

Synonyms[edit]

There are numerous synonyms for the solitary tract:

References[edit]

  1. ^ a b Stedman's Medical Eponyms by Thomas Lathrop Stedman; Lippincott Williams & Wilkins, 2005 - Medical - 899 pages

Retrieved from "https://en.wikipedia.org/w/index.php?title=Solitary_tract&oldid=1218588885"

Categories: 
Medulla oblongata
Neurophysiology
Vagus nerve
Glossopharyngeal nerve
Facial nerve
Gustatory system
Human homeostasis
Innervation of the tongue
Hidden categories: 
Articles with short description
Short description matches Wikidata
Articles with TA98 identifiers
 



This page was last edited on 12 April 2024, at 16:29 (UTC).

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