Pacemaker activity in distal parts of the cat ureter

Existence of two types of uncoordinated spontaneous activities of the cat ureterbladder area was shown: spikes and slow waves. The oscillation frequency of this area is two-fold lesser than the rhythm of renal waves. The activity concordance of these pacemakers occurs under conditions of ureter dissection in the middle. Normally pacemakers of this area seem to be a reserve mechanism of urine pushing through.