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Neuronal architecture of the dorsal nucleus (Cochlear nucleus) of the frog, Rana pipiens pipiens
Author(s) -
Feng Albert S.,
Lin WenYu
Publication year - 1996
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/(sici)1096-9861(19960304)366:2<320::aid-cne10>3.0.co;2-t
Subject(s) - biology , nissl body , nucleus , leopard frog , dorsal cochlear nucleus , rana , anatomy , population , neuroscience , cochlear nucleus , staining , genetics , demography , sociology
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. © 1996 Wiley‐Liss, Inc.