Accession Number : AD0766180

Title :   Size Distribution Analysis of Myelinated Fibers in the Vestibular Nerve of the Pigeon.

Descriptive Note : Research paper,

Corporate Author : DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)

Personal Author(s) : Landolt,Jack P. ; Topliff,E. D. L. ; Silverberg,Jay D.

Report Date : 27 OCT 1972

Pagination or Media Count : 12

Abstract : Nerve fiber counts and the spectral distribution of the myelinated nerve fiber diameters were determined for the vestibular nerve of the White King pigeon. An analysis of variance indicated that the raw data for the utricular, saccular, neglectar, anterior ampullary, and horizontal ampullary nerve branches could be pooled to give am overall unimodal distribution having a mode in the range of 1-2 micrometers. This could not be done for the posterior ampullary nerve and an intraspecific variation was considered to be the cause of the discrepancy. The utricular nerve had more fibers smaller than 3 micrometers in diameter (84.9%) than the other branches. Overall, 63.8% of fibers (exclusive of posterior ampullary nerve) were less than 3 micrometers in diameter. (Modified author abstract)

Descriptors :   (*VESTIBULAR APPARATUS, NERVE FIBERS), (*NERVE FIBERS, MEASUREMENT), NERVES, ANATOMY, BIRDS, CANADA

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE