[Autonomic reactions in rabbits exposed to a constant magnetic field].

Chronic experiments on rabbits have shown that their exposure to a constant magnetic field of 4500 oersted for 3 hours causes a transient hypotension, a decrease in the respiratory rate and a trend for bradycardia. Immediately after the exposure the pressor reaction and bradycardia level decrease and by the end of the first day they increase. At this time the respiratory rate increases in response to the administration of epinephrine, acethylcholine or stimulation of the midbrain reticular formation. The exposure does not decrease the compensatory possibilities of the cardiovascular and respiratory systems. This follows from their reactions to accelerations of 6 and 10 g.