human_reference_atlas part of Homo sapiens anatomical structure kidney renal collecting system http://upload.wikimedia.org/wikipedia/commons/0/02/Gray1128.png renal collecting system renal collecting system UBERON:0004100 FMA:265239 uberon kidney collecting duct system Wikipedia:Collecting_duct_system The collecting duct system of the kidney consists of a series of tubules and ducts that connect the nephrons to the ureter. It participates in electrolyte and fluid balance through reabsorption and excretion, processes regulated by the hormones aldosterone and antidiuretic hormone. collecting duct system SCTID:279371005 AS tubulus renalis colligens