An autoradiographic study of the brainstem projections of vagal visceral afferent fibres in the domestic hen
Norman, P.; Bower, A.J.
Journal of Anatomy 134(Pt 3): 583-589
1982
ISSN/ISBN: 0021-8782 PMID: 7107518 Document Number: 186290
An autoradiographic technique was used to study the central brainstem connections of vagal visceral afferent fibers in the domestic hen. There is a large projection of vagal afferent fibers to the ipsilateral nucleus of the tractus solitarius and a smaller, sparser projection to the contralateral nucleus of the tractus solitarius. Vagal afferent fibers cross the mid-line via the commissural nucleus of Cajal. A second more rostrally placed decussation of vagal afferent fibers is shown. Associated with this more rostral decussation is an area of termination of vagal afferent fibers in the contralateral ventromedial reticular formation. No direct projection of vagal afferent fibers to the dorsal motor nucleus of the vagus was seen.