Mauthner axon diameter and impulse conduction velocity decrease with growth of goldfish.

Abstract:

:Conduction velocities of antidromically evoked impulses along the goldfish Mauthner axon were found to be inversely correlated with body length. To test the hypothesis that such a relation is accompanied by a reduction in axonal diameter with increasing fish size, Mauthner axon diameters were measured. A parabolic relationship with respect to body length was obtained, axonal diameter being maximal in 9.5 cm fish. To our knowledge, this is the first report of a decrease in conduction velocity and axonal size during growth of an organism were functioning of the cell is maintained.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Funch PG,Kinsman SL,Faber DS,Koenig E,Zottoli SJ

doi

10.1016/0304-3940(81)90261-5

subject

Has Abstract

pub_date

1981-12-11 00:00:00

pages

159-64

issue

2

eissn

0304-3940

issn

1872-7972

pii

0304-3940(81)90261-5

journal_volume

27

pub_type

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