[Dynamic characteristics of the dependence of the venous return on changes in the volume of the circulating blood].

Changes of the venous return of blood to the right heart were studied in respect to changes in the total blood volume. The latters were coarsed by the automatical transfusions of blood, controlled by the feed-back loop. Dynamic components of the dependence under study were treated by the spectral analysis technique. The contribution of them to the mechanism of the shift in systemic circulation can prevail over known static approximations of this dependence.