Abstract
Characteristics of spontaneous electrical activity in the ovarian and cervical pacemaker regions of the rat fallopian tubes were comparatively analyzed. In contrast to other active myometrial regions, the ovarian area of the left uterine horn was characterized by highest values of such activity characteristics as the action potential amplitude and rising rate, rhythmogenesis frequency and burst activity duration, indicating a high activity level of this area. Thus, the ovarian area of the left uterine horn was found to be characterized by specific features of spontaneous electrical activity which imply the presence of its additional reserve capabilities for the propagation of electrical excitation and appropriate contractions from the ovarian horn region to the cervical locus.