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Fibre bundle at the base of the brain
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)
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
There are numerous synonyms for the 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)