The nucleus of tractus solitarius is a brainstem nucleus on each side of the upper medulla. It lies lateral to the dorsal nucleus of the vagus, to which it has many connecting neurones, and medial to the spinal tract and the nucleus of the trigeminal nerve. The nucleus has afferent fibres which extend inferiorly within the upper medulla as the tract of solitarius.
The superior part of the nucleus receives fibres from the:
The inferior part of the nucleus receives fibres from the:
The nucleus of tractus solitarius is connected to the:
Functionally, cells of the nucleus play a role in the:
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