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Changes of neurones dimensions as a possible morphological correlate of their increased functional activityстатья
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Geinismann Y.Y., Larina V.N., Mats V.N.
- Журнал: Brain Research
- Том: 26
- Номер: 2
- Год издания: 1971
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 247
- Последняя страница: 257
- DOI: 10.1016/s0006-8993(71)80003-3
- Аннотация: Effects of increased functional activity of spinal motoneurones were studied morphologically on rats in experiments with swimming under different loads and with orthodromic electrical stimulation of 5–40 min duration. The volume of lumbar motoneurones was calculated from major and minor axes of ellipses inscribed into cell body or nuclear outlines on cells' negative projections. Formulae for volume calculations were derived from an optical reconstruction. Both mild and intensive natural motor activity, as well as orthodromic stimulation, resulted in a decrease of the motoneuronal cytoplasmic volume in the longest duration (40 min) of the experiments. The changes of cytoplasmic dimensions were accompanied by a decrease of the nuclear volume after 40 min intensive swimming and orthodromic stimulation. The increase of motoneuronal size was registered only in earlier periods of activation: 5 min after the beginning of mild swimming for the nucleus, and 10 min after the beginning of orthodromic stimulation for motoneuronal cytoplasm. Thus the motoneuronal size changes depended on the duration, intensity and character of the stimulation. The results obtained make it seem that the decrease of the spinal motoneuronal nuclear and cytoplasmic volume might be considered a morphological correlate of their increased functional activity.
- Добавил в систему: Мац Валентина Николаевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 1971_CHANGES_OF_NEURONES_DIMENSIONS_AS_A_POSSIBLE.pdf | 1,4 МБ | 27 июля 2017 [matz_vn] |