[Quantitative evaluation of ultrastructural restructuring in the adrenal cortex of rats under stress].

Quantitative and qualitative analysis has revealed that submicroscopic changes of the rat adrenal cortex in dynamics of the stress reaction examined at the level of "functional element" which combines basic structural components of the parenchyma and stroma are of the polyphase character and agree with data from the biochemical analysis of 11-OCS in blood plasma. At the stage of exhaustion of the stress reaction (72 hours of immobilization) the ultrastructure of the adrenal cortex testifies to the preservation of functional reserves in the secretory cells.