[Functional state of the hypothalamo-hypophyseo-adrenal system of guinea pigs under the influence of angular acceleration].

Experiments were conducted on guinea pigs. A study was made of the influence of increased gravitation on the activity of the hypothalamo-hypophysio-adrenal system. It appeared that a single centrifugation led to the activation of the mentioned system; however, repeated action of the angular accelerations on the animal organism failed to lead to any increase in the blood corticosteroid level (on the 6th-11th days); this can be attributed to the adaptation of the central link of the hypophysio-adrenal system to the given stimulus, and not to the exhaustion of the adrenal cortex.