title: Anatomical substrate for separate processing of ascending and descending visceral information in the nucleus of the solitary tract of the rat.
abstract: We examined the possible existence of divergent visceral pathways arising from the nucleus of the solitary tract, by co-injecting axonal tracers into the parabrachial nucleus and into the ventrolateral medulla. We found that around 5% of NTS neurons projected to both sites, and that neurons projecting to VLM were larger. This parallel organization allows a differential control of the ascending versus descending visceral pathways at an early stage of processing.
authors.affiliation: Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile.
authors.forename: C
authors.initials: C
authors.lastname: Acuña-Goycolea
authors.forename: P
authors.initials: P
authors.lastname: Fuentealba
authors.forename: F
authors.initials: F
authors.lastname: Torrealba
mesh_terms: D000818:Animals; D005456:Fluorescent Dyes; D008526:Medulla Oblongata / Q000033:anatomy & histology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D017552:Solitary Nucleus / Q000033:anatomy & histology / Q000502:physiology*; D017833:Visceral Afferents / Q000033:anatomy & histology / Q000502:physiology*
chemical_list: D005456:Fluorescent Dyes