[Ultrastructural changes in the encapsulated nerve endings of the tibial nerve under the action of diethyl ether in 2 strains of rats selected for their threshold of nervous system excitability].

Ultrastructure of tibial nerve receptor endings was studied in two rat lines different in the threshold of the nerve excitation after decapitation and euthanasia with diethyl ether use. Interlinear diversities of shape and parameters of receptor endings and their mitochondria were established. The results obtained indicate different reactivity of rats varying in genetically determined nervous system excitation threshold to tissue respiration decrease and oxygen insufficiency on ultramicroscopic levels.