[Physical and physiological bases of rheography of the gastrointestinal tract]. / Vurkhu fiziko-fiziologichnite osnovi na reografiiata na stomashno-chrevniia trakt.

In vitro experiments have shown that two kinds of factors are involved in the mechanism, by which the rheogram of the contractile activity of the gastro-intestinal organs is obtained: changes in the geometric parameters of the organ and its wall, on the one hand, and variations in tissue conduction, displayed during the contraction cycle in the smooth muscle, on the other.