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Brain Structure and Function

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01.11.2006 | Original Article

Size and number of binucleate and mononucleate superior cervical ganglion neurons in young capybaras

verfasst von: Antonio Augusto Coppi Maciel Ribeiro

Erschienen in: Brain Structure and Function | Ausgabe 6/2006

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Abstract

The total number of neurons in the superior cervical ganglion (SCG) of adult capybaras is known from a previous study, where a marked occurrence of binucleate neurons (13%) was also noted. Here, distribution, number and fate of binucleate neurons were examined in younger, developing capybaras, aged 3 months. The mean neuronal cross-sectional area was 575.2 μm² for mononucleate neurons and 806.8 μm² in binucleate neurons. Frequency of binucleate neurons was about 36%. The mean ganglion volume was about 190 mm³ in young capybaras and the mean neuronal density was about 9,517 neurons/mm³. The total number of neurons per ganglion was about 1.81 mill. Neuronal cell bodies constituted 22.5% of the ganglion volume and the average neuronal volume was 23,600 μm³. By comparing the present data with those previously published the conclusion is drawn that the maturation period was characterized by the following points: a 26% remarkable decrease in neuronal density which was significant (P < 0.05) and a significant 16% (P < 0.05) decrease in the total number of SCG neurons accompanied by a 23% decrease in the total number of SCG binucleate neurons.

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Titel: Size and number of binucleate and mononucleate superior cervical ganglion neurons in young capybaras
verfasst von: Antonio Augusto Coppi Maciel Ribeiro
Publikationsdatum: 01.11.2006
Verlag: Springer-Verlag
Erschienen in: Brain Structure and Function / Ausgabe 6/2006
Print ISSN: 1863-2653
Elektronische ISSN: 1863-2661
DOI: https://doi.org/10.1007/s00429-006-0113-1

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