Labels:dialog box | web site | window OCR: Role of ADH Regulating Urine Concentration ano Volume Blood carries ADH to kidneys Increase osmotic pressure body fluids stimulates osmoreceptors in hypothalamus in orain Concentration of water in blood decreases. ADH causes distal convoluted tubules and collecting ducts to increase water reabsorption by osmosis Hypothalamus signals posterior pituitary to release ADH Urine concentrates, and urine volume brain