collecting duct

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collecting duct

that part of the renal tubule in a kidney in which water absorption takes place under the control of ADH, producing a urine of variable concentration depending on overall water levels in the body.
References in periodicals archive ?
The patient's ultrasound report of 3 August 2014 showed bilateral normaly placed normal sized kidneys with normal parenchymal echotexture, collecting duct system not dilated, right kidney measured 9.3 cm, left kidney measured 9.6cm, normal urinary bladder wall.
"We have developed a simple and efficient method that allows for the differentiation of human stem cells into well-organized 3D structures of the ureteric bud (UB), which later develops into the collecting duct system."
Senior study author Juan Carlos Izpisua Belmonte, a professor in Salk's Gene Expression Laboratory and holder of the Roger Guillemin Chair said that they have developed a simple and efficient method that allows for the differentiation of human stem cells into well-organized 3D structures of the ureteric bud (UB), which later develops into the collecting duct system.
Without the concentrating effect of the medulla, water has less of an osmotic driving force to leave the collecting duct system, ultimately resulting in increased urine production.

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