title: Bigeminy and polytopic stimulation of the contractions of the renal cavity system.
mesh_terms: D000328:Adult; D002648:Child; D002933:Cineradiography; D005260:Female; D006801:Humans; D007668:Kidney / Q000502:physiology* / Q000503:physiopathology; D007674:Kidney Diseases / Q000503:physiopathology; D007682:Kidney Pelvis / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D010812:Physical Stimulation