Physiology n. depressoris. Relationship n. depressor to vasomotor centers

The central apparatus of the human body, on which the equal distribution of blood throughout the body depends, - the heart, is not an organ completely independent in its functions in the body, but is always under the strict control of the nervous system. At the present time it is well known that there are nerves that change the activity of the heart - its rhythm either towards acceleration or deceleration, and that the heart is equipped with a special nervous mechanism, with the help of which it can change blood pressure, if the latter is very high in the beginning of the aorta, or if the ventricles of the heart are full and thus the emptying of the ventricles is difficult. This nervous apparatus is represented in the animal organism as a so-called depressor nerve. The action of the depressor nerve consists in the fact that when it is excited and its excitement, the total blood pressure drops sharply and the heartbeats are significantly slowed down. Both effects are aimed at allowing the ventricles of the heart to empty more easily from their contents and in this way to reduce the work that the heart would have to do. T. about. this nerve is, as it were, a natural regulator for the heart, as it is called. Regarding why a decrease in blood pressure occurs during irritation of a depressor, the opinions of physiologists are still not the same. Most physiologists with Suon in the head see in a decrease in pressure, in case of irritation of a depressor, the result of oppression of the center of vasoconstrictors, however, there is another view, which, however, has few defenders, according to which the drop in pressure, due to the stimulation of the center of the depressor, is due to irritation. T. the question of the influence of a depressor on one or another center is still open, and the existence of the very center of vasodilators is clearly questioned by some authors; and I think that my attempt to clarify this issue, undertaken at the suggestion of the highly respected teacher, my prof. NA Mislavsky will be, although not entirely new, but far from superfluous.