title: Neuronal architecture of the dorsal nucleus (cochlear nucleus) of the frog, Rana pipiens pipiens.
abstract: The neuronal architecture of the dorsal nucleus of the Northern leopard frog (Rana pipiens pipiens), which is a homolog of the cochlear nucleus of mammals and birds, was investigated. Our study showed that the frog dorsal nucleus contains a number of morphologically distinct cell types that are discernible in terms of the cellular architecture as derived from Nissl-stained material and in terms of the dendritic profile as revealed by horseradish peroxidase-filled single neurons. These cell types are bushy cells, bipolar (or fusiform) cells, octopus cells, stellate cells, giant cells, radiate (or round) cells, and a variety of small cells. The different cell types occupy different regions of the nucleus. Therefore, our results suggest that the dorsal nucleus should no longer be considered to be a uniform nucleus containing a homogeneous population of neurons. Homologies of these cell types with those described in other vertebrate species, including mammals, are proposed.
authors.affiliation: Department of Molecular and Integrative Physiology, University of Illinois, Urbana 61801, USA. feng@ux1.cso.uiuc.edu
authors.forename: A S
authors.initials: AS
authors.lastname: Feng
authors.forename: W Y
authors.initials: WY
authors.lastname: Lin
mesh_terms: D000818:Animals; D017626:Cochlear Nucleus / Q000166:cytology* / Q000502:physiology / Q000648:ultrastructure; D003712:Dendrites / Q000502:physiology / Q000648:ultrastructure; D006651:Histocytochemistry; D006735:Horseradish Peroxidase; D007091:Image Processing, Computer-Assisted; D009474:Neurons / Q000502:physiology* / Q000648:ultrastructure; D011894:Rana pipiens
chemical_list: D006735:Horseradish Peroxidase