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Vejsada R, Paleček J, Hník P, et al. Postnatal development of conduction velocity and fibre size in the rat tibial nerve. Int J Dev Neurosci. 1985;3(5):583-95doi: 10.1016/0736-5748(85)90048-6.
Vejsada, R., Paleček, J., Hník, P., & Soukup, T. (1985). Postnatal development of conduction velocity and fibre size in the rat tibial nerve. International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience, 3(5), 583-95. https://doi.org/10.1016/0736-5748(85)90048-6
Vejsada, R, et al. "Postnatal development of conduction velocity and fibre size in the rat tibial nerve." International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience vol. 3,5 (1985): 583-95. doi: https://doi.org/10.1016/0736-5748(85)90048-6
Vejsada R, Paleček J, Hník P, Soukup T. Postnatal development of conduction velocity and fibre size in the rat tibial nerve. Int J Dev Neurosci. 1985;3(5):583-95. doi: 10.1016/0736-5748(85)90048-6. PMID: 24874968.
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Int J Dev Neurosci. 1985;3(5):583-95. doi: 10.1016/0736-5748(85)90048-6.

Postnatal development of conduction velocity and fibre size in the rat tibial nerve.

International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience

R Vejsada, J Paleček, P Hník, T Soukup

Affiliations

  1. Institute of Physiology, Czechoslovak Academy of Sciences, Víde?ská 1083, 142 20 Prague 4, Czechoslovakia.

PMID: 24874968 DOI: 10.1016/0736-5748(85)90048-6

Abstract

The maximum conduction velocity (CV) and fibre diameters (D) were determined in the tibial nerve of developing rats. In 1-day-old rats CV of the fastest motor and sensory fibres (assessed separately) was 1.4 m/sec on the average and increased to 35 m/sec by postnatal day 30. The maximum conduction rate in adult rats ranged from 60 to 84 m/sec. Diameters of at least 100 nerve fibres in each age group were measured in electronmicrographs. The calibre of myelinating fibres in 1-day-old rats was 0.5-1.5 μm. By day 90 after birth the range of myelinated fibre size extended to 1.5-12.5 μm. The factor relating conduction rate and total fibre diameter of the largest fibres (i.e. the value of CV D ) was found to vary with age, increasing from 1.1 to 6.2 between postnatal days 1 and 90. These results indicate that functional and morphological properties of peripheral nerve fibres in the rat undergo considerable changes during postnatal ontogeny until they reach adult values.

Copyright © 1985. Published by Elsevier Ltd.

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