title: Avian nucleus isthmi ventralis projects to the contralateral optic tectum.
abstract: Injections of HRP throughout the upper tectal strata led in 4 cases to the appearance of retrogradely labeled neurons within n.isthmi ventralis, contralateral to the experimental side. An additional case proved that this projection courses through the ventral supraoptic commissure. This is the first description of a crossed isthmo-tectal projection in birds.
authors.affiliation: Department of Morphology, Faculty of Medicine, University of Murcia, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Martínez
authors.forename: L
authors.initials: L
authors.lastname: Puelles
mesh_terms: D000818:Animals; D002645:Chickens / Q000033:anatomy & histology*; D007839:Functional Laterality; D006735:Horseradish Peroxidase; D013477:Superior Colliculi / Q000033:anatomy & histology*; D014795:Visual Pathways / Q000033:anatomy & histology*
chemical_list: D006735:Horseradish Peroxidase