Neuronal increase in various areas of the nervous system of the guppy, Lebistes

S. C. Birse, R. B. Leonard, R. E. Coggeshall

Research output: Contribution to journalArticle

122 Citations (Scopus)

Abstract

The numbers of (1) dorsal root ganglion cells in the 2nd spinal segment, (2) ventral horn cells in the 2nd spinal segment, (3) Purkinje cells of the cerebellum, and (4) neurons in the nucleus glomerulosus were counted and correlated with age and size of the guppy, Lebistes. The findings were that the neuronal numbers in all these areas increased throughout much of the life of the animal. These data, combined with the previously demonstrated increases in retinal neurons in goldfish and sensory and spinal neurons in stingrays, suggest that neurons are added to many areas of the nervous systems of fish as the animal ages and grows. In this respect, the nervous systems of fish differ from the nervous systems of other vertebrates. The authors offer the suggestion that the comparatively greater ability of fish to regenerate their nervous system after injury may be related in part to their ability to add neurons to various parts of the nervous system throughout life.

Original languageEnglish (US)
Pages (from-to)291-301
Number of pages11
JournalJournal of Comparative Neurology
Volume194
Issue number2
StatePublished - 1980

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Poecilia
Nervous System
Fishes
Neurons
Anterior Horn Cells
Retinal Neurons
Nervous System Trauma
Goldfish
Purkinje Cells
Spinal Ganglia
Sensory Receptor Cells
Cerebellum
Vertebrates

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Birse, S. C., Leonard, R. B., & Coggeshall, R. E. (1980). Neuronal increase in various areas of the nervous system of the guppy, Lebistes. Journal of Comparative Neurology, 194(2), 291-301.

Neuronal increase in various areas of the nervous system of the guppy, Lebistes. / Birse, S. C.; Leonard, R. B.; Coggeshall, R. E.

In: Journal of Comparative Neurology, Vol. 194, No. 2, 1980, p. 291-301.

Research output: Contribution to journalArticle

Birse, SC, Leonard, RB & Coggeshall, RE 1980, 'Neuronal increase in various areas of the nervous system of the guppy, Lebistes', Journal of Comparative Neurology, vol. 194, no. 2, pp. 291-301.
Birse, S. C. ; Leonard, R. B. ; Coggeshall, R. E. / Neuronal increase in various areas of the nervous system of the guppy, Lebistes. In: Journal of Comparative Neurology. 1980 ; Vol. 194, No. 2. pp. 291-301.
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