Changes

: When the [[kidney]]s receive '''anti-diuretic hormone''' any [[water]] lost from the [[blood]] is reabsorbed into the [[blood]] causing the [[Volume (Space)|volume]] of [[urine]] to be low and its [[concentration]] to be high.: When there is little '''anti-diuretic hormone''' the [[water]] taken out of the [[blood]] in the [[kidney]]s is passed on to the [[bladder]] via the [[ureter]]s causing the [[Volume (Space)|volume]] of [[urine]] to be high and the [[concentration]] to be low.