Your browser doesn't support javascript.
loading
Central projection of the peripheral cochlear nerve from each turn to the cochlear nuclei in the Mongolian gerbil
Yonsei Medical Journal ; : 111-115, 1995.
Article in English | WPRIM | ID: wpr-122041
Responsible library: WPRO
ABSTRACT
The central projections of the peripheral cochlear nerve fiber from each turn to the cochlear nuclei (CN) in the mongolian gerbil were investigated using retrograde transportation of horseradish peroxidase (HRP). The organ of Corti and the osseous spiral lamina were scratched with an electrolytically-sharpened fine needle via a small hole at each turn of the cochlea. The cochlea was filled with a 30% horseradish peroxidase (HRP) solution. After 48 hours, 50 microns transverse serial sections of the brainstem were made with a vibratome. The tissue was processed with the diaminobenzidine procedure of the cobalt-glucose method. Our experiment revealed that the fibers from the basal turn terminated at the dorsomedial portion of anteroventral cochlear nuclei (AVCN), but those from the apical turn were distributed among the ventrolateral portion of the AVCN. In the posteroventral cochlear nuclei (PVCN) and dorsal cochlear nuclei (DCN), the fibers from basal to apical turns extend from the dorsal to the ventral portion of each nuclei. A distinct tonotopic arrangement could be found between the origin of cochlear fibers of each turn and their termination in the regions of the cochlear nuclei (CN). Also, the results suggested that the scratch method combined with retrograde transportation of horseradish peroxidase was useful in investigating the tonotopic arrangement of the peripheral auditory nerve in the CN.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Gerbillinae / Cochlear Nerve / Cochlear Nucleus / Horseradish Peroxidase / Animals / Nerve Fibers Language: English Journal: Yonsei Medical Journal Year: 1995 Type: Article

Similar

MEDLINE

...
LILACS

LIS

Full text: Available Index: WPRIM (Western Pacific) Main subject: Gerbillinae / Cochlear Nerve / Cochlear Nucleus / Horseradish Peroxidase / Animals / Nerve Fibers Language: English Journal: Yonsei Medical Journal Year: 1995 Type: Article