title: Evidence for a projection from the globus pallidus to the entopeduncular nucleus in the rat.
abstract: Iontophoretic injections of the fluorescent retrograde tract tracer, Fluoro-gold, into the entopeduncular nucleus of the rat (homologous to the internal segment of the primate globus pallidus) resulted in a substantial number of retrogradely labeled neurons in the ipsilateral globus pallidus (homologous to the external segment of the primate globus pallidus). In experiments confirming this projection, iontophoretic injections of the anterograde tract tracer, Phaseolus vulgaris-leucoagglutinin, in the globus pallidus resulted in dense fiber and terminal labeling in the ipsilateral entopeduncular nucleus. This projection is topographically organized in rostral-caudal, medial-lateral and dorsal-ventral orientations.
authors.affiliation: Department of Anatomy and Cell Biology, University of Michigan, Ann Arbor 48109.
authors.forename: A E
authors.initials: AE
authors.lastname: Kincaid
authors.forename: J B
authors.initials: JB
authors.lastname: Penney
authors.forename: A B
authors.initials: AB
authors.lastname: Young
authors.forename: S W
authors.initials: SW
authors.lastname: Newman
mesh_terms: D000818:Animals; D005456:Fluorescent Dyes; D005917:Globus Pallidus / Q000502:physiology*; D007478:Iontophoresis; D008856:Microscopy, Fluorescence; D009434:Neural Pathways / Q000502:physiology; D010835:Phytohemagglutinins; D051381:Rats; D011919:Rats, Inbred Strains; D013266:Stilbamidines; D009435:Synaptic Transmission
chemical_list: C049774:2-hydroxy-4,4'-diamidinostilbene, methanesulfonate salt; D005456:Fluorescent Dyes; D010835:Phytohemagglutinins; D013266:Stilbamidines; C100156:leukoagglutinins, plants