[Morphological analysis of the reaction of the animal brain to short-term hyperoxia]

Reactions of various structures of the central nervous system of animals to short-term hyperoxia were investigated, using morphological methods available. Reactive, destructive and compensatory-adaptive changes in the structures taken under study were identified. These changes were nonspecific and similar in sign in rats and dogs. In most cases they were reversible but their polymorphism was different in phylogenetically dissimilar structures.