[The synchronizing interaction and mechanism of the formation of the common rhythm of the cardiac pacemaker. I. The modeling of the interaction of 2 pacemaker elements].

The main physiologic hypotheses in establishing a common rhythm of the heart sino-atrial node (SAN) have been considered. A mathematical model of SAN which takes into account the interaction between pace-makers in pairs has been proposed. A quantitative description of common rhythm establishing taking into account interaction in pairs has been obtained, the expressions for the period of common rhythm, a delay and the rate of stimulation distribution have been found. A comparison of calculated and experimental data is given.