title: Electrophysiological and relevant morphological properties of neurons in toad dorsal root ganglion.
abstract: Intracellular recordings were performed on isolated preparations of toad dorsal root ganglion (DRG). Of the 87 neurons examined, 83 were of type A cells and 4 of type C cells. The conduction velocity (CV) of type A cells ranged from 2.55 to 35.19 m/s with a mean of 11.18 +/- 0.78 m/s (mean +/- s mean), while that of type C cells ranged from 1.34 to 2.43 m/s with a mean of 2.11 +/- 0.22 m/s (mean +/- s mean). On the basis of the characteristics of Ap configuration, these 87 cells can be classified into three groups: H neuron (24/87); F neuron (50/87) and F-H neuron (13/87). The Sizes of DRG cells were examined by measuring of HRP labelled cells in part of the experiment. By comparing the size of F and H cell with their CV, we proposed a revised view which is against the public opinion concerning the relation between the size and CV of DRG cells.
authors.affiliation: Research Center of Experimental Medicine, Tongji Medical University, Wuhan.
authors.forename: G D
authors.initials: GD
authors.lastname: Wang
authors.forename: Q P
authors.initials: QP
authors.lastname: Pan
authors.forename: Z W
authors.initials: ZW
authors.lastname: Li
mesh_terms: D000818:Animals; D002023:Bufo bufo; D004594:Electrophysiology; D005260:Female; D005727:Ganglia, Spinal / Q000166:cytology / Q000502:physiology*; D006735:Horseradish Peroxidase; D007796:Laminectomy; D008297:Male; D008839:Microelectrodes; D009474:Neurons / Q000502:physiology
chemical_list: D006735:Horseradish Peroxidase