[Paleoamygdala: cytoarchitectonics, organization and cytological characteristics of neurons].
This investigation was aimed at the comparative analysis of cytoarchitectonics, neuronal organization and cytological peculiarities of dorsomedial, posterior medial and posterior cortical nuclei of rat amygdala. The series of brain frontal sections stained with cresyl violet and impregnated with silver nitrate using Golgi method were studied. It was shown that within the territory of the nuclear complex studied, the organization of the centers of the nervous system gray matter evolved from the nuclear-type into the screen-type. This formation belongs to a sparcely-dendritic neuronal system and it contains the neuroendocrine cells. As a result, it is suggested that on the basis of its structural organization and developmental mechanisms, the nuclear complex studied comprises a unified area of amygdala, which was formed at the earliest stages of its evolution, therefore it should be named a "paleoamygdala".
Akhmadeev
A V
AV
Kalimullina
L B
LB
D000679:Amygdala / Q000166:cytology*; D000818:Animals; D005075:Biological Evolution; D009474:Neurons / Q000166:cytology* / Q000648:ultrastructure; D051381:Rats