Electron microscopic characterization of neurons in the anterior part of the amygdaloid body of the rat brain.
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Amygdala↗
Biomedical subjects
Z R Minibaeva
Publications and source records attributed to Z R Minibaeva.
Structural organization of the amygdaloid complex of the rat brain.
The amygdaloid complex, traditionally regarded as part of the system of basal endbrain nuclei, has a unique structure in that it combines the two major principles of organization of the gray matter--the nuclear and the screening. Working from the studies of Zavarzin on the nuclear and screening centers, the authors suggest a classification of its structures into nuclei, paleocortex, and intermediate formations.
Amygdala↗
[Rostro-caudal gradient in the amygdala structural and functional organisation].
New data supporting the assumptions of the hypothesis stating the rostro-caudal gradient in the amygdala structural and functional organization are presented. First formulated on the basis of particular location of amygdala zones possessing sexual dimorphism, the above hypothesis is corroborated by the works which characterize its structural organization, participation of amygdala rostral and caudal parts in ensuring various functions including behavior. The authors believe that the amygdala rostro-caudal gradient is predetermined by the phase character of its formation in phylogenesis.
Amygdala↗
[The central nucleus of the amygdala: cytoarchitechtonics, neuronal organization, and histophysiology].
Neurologists' attention is attracted by amygdala's central nucleus which takes part in formation of stress response and adaptive behaviour in animals. The data on cytoarchitectonics, neuronal organization and histophysiology of this important centre are based on current knowledge of its subnuclear organization.
Amygdala↗
[Structural organization of amygdaloid brain complex of the rat].
Amygdala belong to the system of basal nuclei of telencephalon. Amygdala are a complicated structure based on both principles of grey matter organization: nuclear and screen-type, on its territory. Authors investigate into the structure of Amygdala using theory of Zavarzin A. As the result of this study, a classification of components of Amygdala into nuclei, paleocortical and intermediate formations, has been developed.
Amygdala↗
[Characteristics of neurons from the anterior region of the rat amygdaloid body by electron microscopy].
Dark and light neurons with morphological signs of secretory activity are described within one of the major sexually dimorphic zones of brain amygdaloid nucleus (anterior cortical nucleus). Dark neurons are of medium size, they have large nuclei and well developed perikarya. The latter contain numerous free ribosomes and mitochondria, dilated rough endoplasmic reticulum cisterns, hypertrophied Golgi complex with forming secretory granules. Elementary neurosecretory granules (ENG) 75-300 nm in size were found in light neurosecretory cells, which seem to be similar to dark cells but are at different phase of functional activity. Synapses of all types known, containing small light vesicles, vesicles with dense core and ENG, were found in active neuropil.
Amygdala↗
[Cytologic characteristics of "dark" and "light" cells in the brain amygdaloid complex].
This paper reports data on cytological peculiarities of neurons of two main zones of sexual dimorphism in brain amygdala (dorsomedial nucleus and anterior cortical nucleus). The main attention was paid to some characteristics of "dark" and "pale" cells found in the amygdaloid complex for the first time. It is supposed that the dark and pale cells are targets for gonadal steroids, whose cyclic changes in concentration in the blood difined their functional states. Though the ultrastructure of dark and pale cells of the amygdaloid complex is similar to that of neurosecretory cells of hypothalamus, there are necessary electron microscopic and cytochemical evidences.
Amygdala↗
[Neurosecretory cells from the amygdala].
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Amygdala↗
[Structural-quantitative characterization of nuclear and screen-like formations in the anterior section of the amygdaloid body of the brain].
Cytoarchitectonics and planimetry of structures of amygdaloid body anterior region were investigated in view of A.A. Zavarzin concepts on nuclear and screen-type centres of nervous system. Amygdaloid body was shown to be a complicated heterogenous brain formation, the structure of which reflects both basic principles (nuclear and screen-type) of grey matter organization. Structural and quantitative characteristics of the amygdaloid body anterior region provides a confirmation for assumption that it is a nucleo-paleocortical brain component.
Amygdala↗